The evaporator coil is one of the key parts of the air-con system. It needs to work efficiently or this will affect your whole unit. Learn what it does & how to look after it.

<p><span style="font-weight: 400;"><img src="https://cdn.buttercms.com/wgDSu0XkQz6Kr2eKTikV" alt="undefined" style="display: block; margin-left: auto; margin-right: auto;"></span></p>
<p><a href="https://www.boxt.co.uk/air-conditioning" rel="follow">Air conditioning units</a><span style="font-weight: 400;">&nbsp;found in homes in the UK have various </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-parts"><span style="font-weight: 400;">parts</span></a><span style="font-weight: 400;"> and mechanisms that allow them to do their job of keeping you cool. The evaporator coil is one of the key parts of the air-con system. If it breaks or starts to work less efficiently, this will, unfortunately, affect your whole unit and prevent it from working as it should, so it&rsquo;s important to understand what it does and how to maintain it.&nbsp;</span></p>
<h2><span style="font-weight: 400;">What is the evaporator coil?</span></h2>
<p><span style="font-weight: 400;">Split system air conditioning units, like those sold by us at BOXT, have two units that comprise the system. There&rsquo;s the outdoor unit containing the compressor and condenser coil, and the indoor unit housing the filter, fan and arguably the star of the show, the evaporator coil.&nbsp;</span></p>
<p><span style="font-weight: 400;">The evaporator coil is located near the system fan in your indoor unit. It&rsquo;s an upright structure usually in a shape resembling an &lsquo;A&rsquo;, comprised of panels and coils made from metals like copper, aluminium or steel due to these metals being good heat conductors. The coiled tubes on the panels of an evaporator coil are also lined with metal fins so the heat from the air can get as close as possible to the </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-refrigerant"><span style="font-weight: 400;">refrigerant</span></a><span style="font-weight: 400;"> within the tubes to maximise heat absorption and the cooling effect.&nbsp;</span></p>
<h2><span style="font-weight: 400;">What does the evaporator coil do?</span></h2>
<p><span style="font-weight: 400;">In a </span><a href="https://www.boxt.co.uk/air-conditioning/guides/split-system-air-conditioner"><span style="font-weight: 400;">split system air conditioning unit</span></a><span style="font-weight: 400;">, refrigerant liquid flows between the two units, with the evaporator coil having the role of using the cool refrigerant to absorb the heat from the warm air that&rsquo;s drawn in from your home. This is a continuous process of absorbing heat from the air to cool it down until your air conditioner detects that your room has reached the desired temperature or you switch off your unit.</span></p>
<p></p>
<p><span style="font-weight: 400;">It&rsquo;s a lot more complex than this, though, so let&rsquo;s go over the process the evaporator coil uses to cool your home in more detail.&nbsp;</span></p>
<p></p>
<ol>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">The compressor pulls the liquid refrigerant into and through the metal-lined tubes in the evaporator coil.</span></li>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">The liquid refrigerant passes through the expansion valve, which relieves the pressure from the liquid, lowering its temperature and making it cool.&nbsp;</span></li>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">The expansion valve then releases the cooled refrigerant in a controlled manner helping your air conditioner function efficiently.</span></li>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">&nbsp;The cooled refrigerant, once released by the expansion valve, absorbs the heat energy from the warm air that&rsquo;s brought in from your room&rsquo;s climate and blown over the evaporator coil&rsquo;s tubes.</span></li>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Once the refrigerant has absorbed the heat, it evaporates, hence where this part gets its name!</span></li>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">The remaining water vapour from the household air condenses into a liquid that drains into your unit&rsquo;s condensate pan and is transported to be disposed of outside your home.&nbsp;&nbsp;</span></li>
</ol>
<h2><span style="font-weight: 400;">How can you maintain your evaporator coil?</span></h2>
<p><span style="font-weight: 400;">Due to the evaporator coil being such a prominent part of an air conditioning unit, <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-maintenance" rel="follow">routine maintenance</a> is essential to ensure it&rsquo;s functioning as it should, and your overall air-con system can run as efficiently as possible.&nbsp;</span></p>
<p><span style="font-weight: 400;">You should ensure you stick to:</span></p>
<p></p>
<ul>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Regular cleaning</span></li>
</ul>
<p><span style="font-weight: 400;">The coils on your evaporator coil need to be kept as clean as possible to perform at optimum efficiency. Even a thin layer of dust build-up can impact your coils ability and cause your system to use more energy than usual to do the same job. Dust or grime can cause the coils heat absorption and cooling capacity to be limited and reduced, costing you more in energy bills and increasing your carbon footprint, so it&rsquo;s worthwhile keeping it clean.&nbsp;</span></p>
<p></p>
<ul>
<li style="font-weight: 400;" aria-level="1"><span style="font-weight: 400;">Servicing&nbsp;</span></li>
</ul>
<p><span style="font-weight: 400;">As well as regular cleaning, you will also need to book in for at least one annual air conditioning service, and where possible, a few services a year to keep on top of the maintenance of your unit&rsquo;s internal parts. Due to airborne chemicals in your home caused by new carpets, upholstery, air fresheners and cleaning products, evaporator coils can develop tiny leaks due to corrosion. Having regular services carried out by a professional will ensure you identify these as soon as possible and resolve them.&nbsp;</span></p>
<p><span style="font-weight: 400;">Read: <a href="https://www.boxt.co.uk/air-conditioning/guides/how-to-repair-an-evaporator-coil" rel="follow">How to repair an evaporator coil</a></span></p>
<p></p>
<h2><span style="font-weight: 400;">Looking for a new air conditioning unit for your home?</span></h2>
<p><span style="font-weight: 400;">Knowing which <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning unit</a> is suitable for your needs and home can be tricky, so we invented a new way of doing things that takes the stress out of your decision. You can use our &lsquo;</span><a href="https://www.boxt.co.uk/find-ac"><span style="font-weight: 400;">find AC</span></a><span style="font-weight: 400;">&rsquo; tool, which asks you a few simple questions about your property to be presented with a range of suitable options to choose from that suit your budget. What&rsquo;s more, you can benefit from one of our </span><a href="https://www.boxt.co.uk/finance"><span style="font-weight: 400;">finance options</span></a><span style="font-weight: 400;"> to pay for your new unit monthly at your own pace rather than all in one go. </span></p>

Have a good night every night with our fixed price air conditioning packages.

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What does the evaporator coil do in an air conditioner?

The filter is a vital part of your air conditioning system and it needs maintenance from time to time. Find out how to look after it with this guide.

<p style="text-align: center;"><img src="https://cdn.buttercms.com/cYCJKPv6Rhy1epwGcsu7" alt="air-conditioner-cleaning .png"></p>
<p><span style="font-weight: 400;">The filter of your </span><a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning unit</a><span style="font-weight: 400;"> is vital for removing dust, pollen and anything harmful from the air. Air filters are beneficial for everyone as they improve air quality and have added health benefits too! If you are wondering how to maintain your filter or whether to swap to a more efficient filter, </span><a href="https://www.boxt.co.uk/boilers?mkwid=s9RGuaGcv%7Cpcrid%7C398763506876%7Cpkw%7Cboxt%7Cpmt%7Ce%7Cpdv%7Cc%7Cslid%7C%7C&amp;pgrid=54247011584&amp;ptaid=aud-332143314609:kwd-317651328846&amp;gclid=CjwKCAjwr56IBhAvEiwA1fuqGtzBQIKitVUUUkdSOnWiPHnSHdmZD7bRmm47X8VhQDWtWWP2PaPv9hoCFH4QAvD_BwE"><span style="font-weight: 400;">BOXT </span></a><span style="font-weight: 400;">have created this handy guide to help you out.&nbsp;</span></p>
<p><span style="font-weight: 400;">From time to time, your air filter gathers dust and becomes clogged, this can block the airflow and reduce your systems efficiency, causing a rise in those energy bills (oh no!). Some types of filters are reusable and just need a little clean, others need replacing.</span></p>
<p><span style="font-weight: 400;">First let&rsquo;s talk about the different types of filters.</span></p>
<p></p>
<h2><b>The different types of air conditioning filters</b></h2>
<h3><b>Pleated&nbsp;</b></h3>
<p><span style="font-weight: 400;">Pleated filters are a cost-effective option. They are extremely efficient, known to trap smaller airborne particles than the fibreglass filters as their pleats give them a wider surface area. When it comes to maintaining the pleated filter, it needs replacing now and then if it becomes clogged.&nbsp;</span></p>
<p></p>
<h3><b>Reusable</b></h3>
<p><span style="font-weight: 400;">Reusable filters can be cleaned and used again. These are cost-effective filters designed for someone who doesn&rsquo;t use their air conditioner that often or someone who keeps it on a low setting. This filter is not very efficient when it comes to removing smaller airborne particles, though.&nbsp;</span></p>
<p></p>
<h3><b>Fibreglass</b></h3>
<p><span style="font-weight: 400;">Fibreglass filters are one of the cheapest, most popular options out there but they aren&rsquo;t the most efficient. These can&rsquo;t be reused, they need replacing.&nbsp;</span></p>
<p></p>
<h3><b>Electrostatic&nbsp;</b></h3>
<p><span style="font-weight: 400;">Electrostatic filters are one of the most efficient, costing you a little more than the average filter. These filters have self-charging fibres which use static electricity to trap airborne particles. When it comes to maintenance, these will need replacing.&nbsp;</span></p>
<p></p>
<h2><b>What&rsquo;s best - a reusable filter or a disposable one?&nbsp;</b></h2>
<p><span style="font-weight: 400;">Reusable filters are great as they save money in the long run and can be used over and over again; all it takes is a quick rinse. Disposable filters tend to trap more particles and are more efficient but need replacing every 1-2 months. So, both have their advantages. It's about choosing what&rsquo;s best for you.&nbsp;</span></p>
<p></p>
<h2><b>When should I change or clean my air filter?&nbsp;</b></h2>
<p><span style="font-weight: 400;">Your air filter should be changed or cleaned every couple of months as hazardous particles can accumulate and block the filter, reducing its efficiency. These contaminants can make their way back into the air, making it even dirtier than before and cause a range of health problems.</span></p>
<p><span style="font-weight: 400;">If your </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-problems"><span style="font-weight: 400;">air conditioner is not working properly</span></a><span style="font-weight: 400;"> - it&rsquo;s likely to be the filter. The most common cause of a faulty air conditioning system is a clogged filter.&nbsp;</span></p>
<p></p>
<h2><b>How do I change my filter?&nbsp;</b></h2>
<p><span style="font-weight: 400;">First, make sure the system is turned off. In a duct system, the filter is placed in the outdoor unit and can be removed by unclipping it. In a ductless system, the filter is found in the indoor unit; this again, easily unclips.&nbsp;</span></p>
<p></p>
<h2><b>How do I clean my reusable filter?&nbsp;</b></h2>
<p><span style="font-weight: 400;">So, you have a reusable filter that doesn&rsquo;t need replacing but needs cleaning. This can be washed down with water in a sink or even a hosepipe but make sure it&rsquo;s properly dry; otherwise, it may grow harmful bacteria! Another way you can clean your reusable filter is by using the vacuum cleaner to extract all of the dust (and other dirty particles).&nbsp;</span></p>
<p></p>
<h2><b>BOXT can answer any queries.&nbsp;</b></h2>
<p><span style="font-weight: 400;">For more information on the correct filter for your system or anything that this handy guide hasn&rsquo;t covered, call us on </span><span style="font-weight: 400;">0800 193 7777. Alternatively, you can message us on our </span><a href="https://www.boxt.co.uk/"><span style="font-weight: 400;">Live Chat </span></a><span style="font-weight: 400;">for advice on air conditioning filters and maintenance.</span></p>

Air conditioning filters: types of maintenance 

Read our handy guide to find out what goes on behind the scenes of your air conditioning condenser unit and the role it plays in cooling your home.

<p><span style="font-weight: 400;">Many of us depend on our </span><a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning unit</a><span style="font-weight: 400;"> to keep cool throughout those hot months, but what actually goes on behind the scenes? It is extremely beneficial to know what your air conditioning condenser unit is and its role in your A/C system, so that you can maintain it properly and understand how to fix any issues if they occur. This helpful guide from </span><span style="font-weight: 400;">BOXT</span><span style="font-weight: 400;">, will help you do exactly that.&nbsp;</span></p>
<p></p>
<p><img src="https://cdn.buttercms.com/tIR7oR0jThKJbxgfkH2T" alt="undefined" style="display: block; margin-left: auto; margin-right: auto;"></p>
<p></p>
<h2><b>So, what is a condenser unit?&nbsp;</b></h2>
<p></p>
<p><span style="font-weight: 400;">An air conditioning condenser unit is the outdoor </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-parts"><span style="font-weight: 400;">part of your system</span></a><span style="font-weight: 400;">. </span><span style="font-weight: 400;">The outdoor unit contains the fan, the condenser and a <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-compressor" rel="follow">compressor</a>. Both the indoor unit and the outdoor unit are required to work together to provide cool air to the rooms of your home.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">The condenser is the most vital part of the outdoor unit. The condenser coils are made out of copper. Within the condenser, there are a series of fans with aluminium fins.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">The compressor, an electric pump, is also an important part of the outdoor unit as it pressurises the </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-refrigerant"><span style="font-weight: 400;">refrigerant</span></a><span style="font-weight: 400;">, a cooling agent, and transfers it to the condenser coil.&nbsp;</span></p>
<p></p>
<h2><b>What is the role of a condenser unit?</b></h2>
<p></p>
<p><span style="font-weight: 400;">The outdoor unit, also known as the condenser unit, houses the compressor. The refrigerant gas enters the compressor where the molecules are compressed and become very hot. The compressor then sends the refrigerant gas to the condenser where the fans work to remove the heat from the refrigerant. The refrigerant becomes a liquid and then returns the refrigerant to the indoor unit for it to do its part.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">When the indoor unit has collected the heated air, it is sent back to the outside where it is disposed of.&nbsp; This process is repeated until the air in your home reaches the temperature that you set on the thermostat.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">So, that&rsquo;s the role of the condenser unit. The role of the actual condenser within it is to pump the refrigerant and cool it, converting it into liquid form. Without it, the system is useless.</span></p>
<p></p>
<h2><b>Issues with your A/C condenser&nbsp;</b></h2>
<p></p>
<p><span style="font-weight: 400;">Sometimes things can go wrong. </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-problems"><span style="font-weight: 400;">Spotting the issues</span></a><span style="font-weight: 400;"> at an early stage can save you money and stop your air conditioning system from completely shutting down.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">Over time, with wear and tear, you may notice you have a clogged condenser or damaged condenser coils. The system may still work, but it will not work efficiently. If the refrigerant isn't cooled to the correct temperature your system is inefficient and at risk of completely shutting down. You should contact a qualified engineer to sort this.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">The system working harder to generate cool air will result in a rise in energy bills and an increased carbon footprint (and we don&rsquo;t want that).&nbsp;</span></p>
<p></p>
<h2 style="text-align: center;"><img src="https://cdn.buttercms.com/rFiTQkVIRuCS1xzl7QCI" alt="undefined"></h2>
<p><b></b></p>
<h2><b>How to recognise any issues with your A/C condenser&nbsp;</b></h2>
<p></p>
<p><span style="font-weight: 400;">Well, if your energy bills are rising this may be an issue with your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a>.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">If you find yourself refuelling the system a lot more than normal, there may be a problem.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">If you notice that there is a lack of cool air, there is an issue with your A/C system. A lack of cool air can be caused by a system that is </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-leaks"><span style="font-weight: 400;">leaking</span></a><span style="font-weight: 400;"> (check for pools of fluid around the units).&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">If the units are making strange noises - there&rsquo;s likely to be an issue.</span></p>
<p></p>
<p><span style="font-weight: 400;">But don&rsquo;t panic - with a well maintained system these issues are pretty unlikely.&nbsp;</span></p>
<p></p>
<h2><b>Maintaining the condenser&nbsp;</b></h2>
<p></p>
<p><span style="font-weight: 400;">You should always let a qualified air conditioning engineer fix any issues with your A/C system. It is possible to fix some things yourself but if you don&rsquo;t know what you are doing this can cause further problems.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">Have your air conditioning serviced at least once a year to ensure your system continues to work effectively.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">Change the air <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-filters-types-maintenance" rel="follow">filter</a> every 90 days. You should be able to find information on this in the air conditioning manual.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">Make sure that the vents are always clean and free of debris. Pour a mixture of bleach and water down the outside drain. Dust off any dirt from the indoor vent.&nbsp;&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">If your house has an air conditioning system over 12kW, you must have a </span><a href="https://www.boxt.co.uk/air-conditioning/guides/tm44-inspection"><span style="font-weight: 400;">TM44 inspection</span></a><span style="font-weight: 400;"> around every five years. This consists of an energy assessor carrying out an inspection of the units.&nbsp;</span></p>
<p></p>
<h2><b>If your air conditioning breaks and you&rsquo;re in need of help, call BOXT.</b></h2>
<p></p>
<p><span style="font-weight: 400;">At </span><span style="font-weight: 400;">BOXT</span><span style="font-weight: 400;">, you can call us on 0800 193 7777 and our specialists will dispatch an engineer to fix any issues with your BOXT air conditioning system. It may even be something simple - we provide guidance over the phone to help you overcome any problem. Don&rsquo;t want to call us? Use our </span><a href="https://www.boxt.co.uk/boilers?mkwid=s9RGuaGcv%7Cpcrid%7C398763506876%7Cpkw%7Cboxt%7Cpmt%7Ce%7Cpdv%7Cc%7Cslid%7C%7C&amp;pgrid=54247011584&amp;ptaid=aud-332143314609:kwd-317651328846&amp;gclid=Cj0KCQjw0emHBhC1ARIsAL1QGNetyp6xufEOSfXAf6xNtYpqXaZ0e9hpBomie7aXFB1Ef0N-1u0pUYYaArJ8EALw_wcB"><span style="font-weight: 400;">live chat service</span></a><span style="font-weight: 400;"> and speak to a specialist.&nbsp;</span></p>
<p></p>
<p><span style="font-weight: 400;">If you are looking to purchase a new system, BOXT can help. We&rsquo;ll provide you with a quote for a new, quality air conditioning system. You can also use our </span><a href="https://www.boxt.co.uk/find-ac/e69c23b8-02c7-4979-99e2-48c778e6d630"><span style="font-weight: 400;">Find an A/C System Tool,</span></a>&nbsp;<span style="font-weight: 400;">which helps you find the perfect air conditioner for your home.&nbsp;</span></p>

What is an air conditioning condenser unit?

Is your air conditioning system no longer blowing cool air? It’s time to replace the evaporator coil. Here’s how to do it.

<p style="text-align: center;"><img src="https://cdn.buttercms.com/wgDSu0XkQz6Kr2eKTikV" alt="air-con-evaporator-coil.png"></p>
<p><span style="font-weight: 400;">So, your </span><a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning unit</a><span style="font-weight: 400;"> is no longer blowing cold air - this likely means it&rsquo;s time to replace the evaporator coil. </span><span style="font-weight: 400;">The </span><a href="https://www.boxt.co.uk/air-conditioning/guides/what-does-the-evaporator-coil-do-in-an-air-conditioner" rel="follow"><span style="font-weight: 400;">evaporator coil</span></a><span style="font-weight: 400;">, also known as the condenser coil, plays a central part in cooling the warm air that circulates within the air conditioner. So, if you find that your air conditioning doesn&rsquo;t seem to be as cool as it once was - it&rsquo;s likely to be <a href="https://www.boxt.co.uk/air-conditioning/guides/repairing-an-evaporator-coil" rel="follow">a problem with the evaporator coil</a>.&nbsp;</span></p>
<p><span style="font-weight: 400;">At </span><span style="font-weight: 400;">BOXT</span><span style="font-weight: 400;">, we highly recommend that repairs should be carried out by a professional, but if you are somewhat experienced and want to try it for yourself then here&rsquo;s what to do. With the right knowledge, replacing an evaporator coil can be pretty simple.&nbsp;</span></p>
<p></p>
<h2><b>How to tell if your evaporator coil needs replacing</b></h2>
<p><span style="font-weight: 400;">Besides the air conditioner no longer blowing cool air, </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-leaks"><span style="font-weight: 400;">leaks</span></a><span style="font-weight: 400;"> are another sign that your evaporator coil needs replacing. If you find that there are leaks around your air conditioning units, closely inspect the condenser coil for any damage. If the coil is cracked or damaged in any way, it needs replacing.&nbsp;</span></p>
<p></p>
<h2><b>A step-by-step guide to replacing the evaporator coil&nbsp;</b></h2>
<p><span style="font-weight: 400;">Not only is replacing the evaporator coil a lengthy job, the cooling agent will need to be disposed of correctly without it leaking into the environment as this can lead to all sorts of fines. It is always better to contact a professional if you are having </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-problems"><span style="font-weight: 400;">problems with your air conditioning</span></a><span style="font-weight: 400;">.&nbsp;</span></p>
<p></p>
<h3><b>Step 1 - Remove the coil</b></h3>
<p><span style="font-weight: 400;">Before you do this - turn off the air conditioning. First you should cut the inbound and exit tubes, but be careful - the gas will begin to leak. If you are unsure of how to dispose of the </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-refrigerant"><span style="font-weight: 400;">refrigerant gas</span></a><span style="font-weight: 400;"> you should contact an expert.&nbsp;</span></p>
<p></p>
<h3><b>Step 2 - Replace the coil</b></h3>
<p><span style="font-weight: 400;">Insert the new coil into the existing ports and solder this into place.&nbsp;</span></p>
<p></p>
<h3><b>Step 3 - Replace the coolant&nbsp;</b></h3>
<p><span style="font-weight: 400;">Vacuum out any air from the lines. If the coolant is not at the correct level - top it up.&nbsp;</span></p>
<p></p>
<h3><b>Step 4 - Test the air conditioner&nbsp;</b></h3>
<p><span style="font-weight: 400;">To test that the <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioner</a> is working properly, turn it back on, and you are all set to go! If, in the unlikely case that your air conditioning does not turn back on, inspect the unit for any further problems or call a professional to help.&nbsp;</span></p>
<p></p>
<h2><b>Still struggling?&nbsp;</b></h2>
<p><span style="font-weight: 400;">For more information on evaporator coils or with help replacing them, talk to a member of our team on </span><span style="font-weight: 400;">0800 193 7777 or by using our online </span><a href="https://www.boxt.co.uk/"><span style="font-weight: 400;">Live Chat</span></a><span style="font-weight: 400;"> service. Our team is always happy to help with any kind of query.</span></p>

How to install a new evaporator coil in your air conditioner

Ensure your air conditioning unit stays in good working order here and discover the signs your evaporator coil may need to be repaired or replaced. 

Get a fixed price quote for air conditioning 

<p>Evaporator coil leaks or breakages in your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> can be hugely frustrating and, if not detected quickly, expensive to fix.</p>
<p>To help you avoid paying hefty fees for a new evaporator coil, we put this guide together.&nbsp;</p>
<p>Here, we explore the common reasons for broken or leaking evaporator coils, what causes them, and, most importantly, what you can do to mitigate the risk of needing an evaporator coil replacement.</p>
<h2>What is an evaporator coil?</h2>
<p>An AC evaporator coil is typically located near the system fan in the indoor unit of an air conditioner. The coil is made from metal, usually copper, aluminium or steel, as these conduct heat well. In terms of what it looks like, the evaporator coil features a series of tubes that wind around A-shaped panels. These panels are also lined with thin pieces of metal, which maximise the cooling by guiding passing air into the coil.</p>
<p style="text-align: left;"><img src="https://cdn.buttercms.com/i1H3i0yT82O7CtJNXbkF" alt="undefined" class="butter-float-left"><span style="font-weight: 400;"></span></p>
<p style="text-align: left;"><span style="font-weight: 400;"></span></p>

We cover what an evaporator coil is, what it does, and how you can maintain it to avoid any mishaps.

Check out our complete guide

Want to learn more about evaporator coils?

<h3>What does the evaporator coil do?</h3>
<p>The evaporator coil plays a vital part in the cooling process of your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> unit. The coil cools the refrigerant to absorb the heat from your home. If this component becomes broken or faulty, and your air conditioning no longer blows cool air, it can be very frustrating.&nbsp;</p>
<p>Want to learn more? Read our &lsquo;<a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-refrigerant" rel="follow">What is air conditioning refrigerant</a>&rsquo; guide.</p>
<p>So, the evaporator coil in your air conditioning system has stopped working. This can leave you uncomfortable and stressed. But don't panic - we put together this handy guide to help you out with any issues your evaporator coil is having.&nbsp;</p>
<h2>Common evaporator coil problems</h2>
<p>Before we get into the ins and outs of evaporator coils, their common faults, and what might have caused them, here are some telltale signs that you have a broken or leaky evaporator coil:</p>
<ul>
<li>Your air conditioning won't turn on &nbsp;</li>
<li>The vents are blowing out warm air</li>
<li>Your air conditioning system starts and stops frequently</li>
<li>The refrigerant is leaking</li>
<li>Unusual noises are coming from the units</li>
<li>There is an increase in your energy bills - this may indicate that the air conditioning unit is having to work harder to cool your home</li>
</ul>
<p>In terms of fixing issues, you should only attempt to repair leaks or a broken evaporator coil if you're a trained HVAC professional. Otherwise, you risk voiding your air conditioner's warranty and exacerbating the issue, making it more expensive to fix.</p>
<h3>1. Leaking evaporator coil</h3>
<p>If your evaporator coil starts leaking, your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> system will need to work a lot harder to cool the air, which can cause it to break down.&nbsp;</p>
<p>This may happen in older air conditioning systems; however, if a leaking evaporator coil occurs when your system is relatively new, this could be due to a manufacturing defect or a poorly installed coil.&nbsp;</p>
<p>A leaking coil should always be replaced, not repaired, and you should call a professional to fix this.</p>
<p>Leaky evaporator coils are more common in older air conditioners and mean that the system will have to work a lot harder to cool air. Ultimately, leaking coils can cause air conditioning units to break down unless the problem is rectified quickly.</p>
<h4>What causes evaporator coil leaks?</h4>
<p>These things commonly cause evaporator coil leaks:</p>
<ul>
<li>A reaction that can occur when copper, water, and volatile organic compounds combine to create formic acid, corroding the copper tubing</li>
<li>Holes in the pipes that form due to excessive vibrations from aluminium fins</li>
<li>A build-up of mould that weakens the pipework</li>
</ul>
<p>An evaporator coil leak can happen when dirt and debris are left to build up, making it essential you have your air conditioning unit serviced regularly, especially before the warmer months when you'll rely on your cooling system most.</p>
<h3>2. Frozen coils</h3>
<p>If your evaporator coil is frozen, you'll find ice forming around the coil. Luckily, this issue can be repaired, so you won't need to pay for a new evaporator coil.</p>
<p>Although thawing AC evaporator coils may be as straightforward as turning off the system and giving it a chance to thaw out, you must inform a fully qualified HVAC technician about the problem so they can inspect any additional damage.</p>
<p>The engineer will also check the system to ensure there are no blockages or refrigerant leaks. Frequent freezing could be a sign that there is a more severe issue with your AC system, so you must get it checked out as soon as possible.</p>
<h4>What causes frozen coils?</h4>
<p>The common reasons for evaporator coils freezing in an HVAC unit are:</p>
<ul>
<li>Low refrigerant levels: Air conditioners need a certain amount of refrigerant to ensure adequate performance. Too little, and the system may freeze up.</li>
<li>Blocked condensate drain line: The condensate line expels excess water from the cooling system; if this line blocks and water collects near the evaporator coil, it can freeze because it is the coldest part of an AC unit.</li>
<li>Dirt and debris in air filters and vents: Air conditioners need airflow to function correctly. If a filter or duct is obstructed, e.g. by dirt and debris, the coils may get too cold, accumulating ice.</li>
<li>Faulty thermostat: Problems with your thermostat may mean it senses the wrong temperature, resulting in over-cooling and, eventually, frozen evaporator coils.</li>
</ul>
<h3>3. Dirt in the coil</h3>
<p>A dirty evaporator coil can have a significant impact on the performance of your AC and the air quality inside your home. The following symptoms can all be signs that dirt has built up in the evaporator coil:</p>
<ul>
<li>Increased energy consumption</li>
<li>Reduced performance and capacity</li>
<li>The unit produces an unpleasant smell</li>
</ul>
<h4>What causes dirt in evaporator coils?</h4>
<p>As air passes through your AC system, small dirt particles can be picked up. Once these start to collect, they can remain in the evaporator coil, reducing the airflow performance of your unit.</p>
<p>To manage this problem, you should ensure the outdoor unit of your air conditioner is kept free of obstructions.</p>
<h3>4. The refrigerant is running low</h3>
<p>As the refrigerant passes through your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioner</a>, it cycles between gas and liquid states, being recirculated through the system. So, in theory, the refrigerant should not diminish; however, if the refrigerant does start to run low, the evaporator coil will have nothing to cool, and the unit's performance will suffer.</p>
<p>Low refrigerant levels may also indicate a leak, so if you think your refrigerant needs topping up, you should call an HVAC technician to take a look.</p>
<h4>What causes low refrigerant?</h4>
<p>A refrigerant leak somewhere in the system may cause the problem. Still, it could be caused by using the air conditioner for extensive periods or in scorching weather, when increased demand puts pressure on the system.</p>
<h3>5. The fan has stopped working</h3>
<p>The fan is an essential part of the cooling process as it blows air across the evaporator coil. Without the fan, air cannot travel around the system, resulting in problems with the evaporator coil, including freezing.</p>
<h4>What causes a broken fan?</h4>
<p>Many factors can affect the performance of an air conditioner fan or even break it completely. These include:</p>
<ul>
<li><strong>Electrical problems: </strong>If you have had your air conditioner for a while, the system's wires may have become frayed or loose, impacting the performance of the motor and the fan.</li>
<li><strong>Damaged fan blades: </strong>The blades on the AC unit's fan may bend or break. This can happen if dirt or debris has built up. If you have tried to fix the system yourself and have not taken the proper care, you increase the chances of damaging the fan blades, so it's best to have a qualified technician inspect your air conditioner.</li>
<li><strong>Motor issues: </strong>If you notice the fan not moving, it could be because the motor has burnt out. This can occur if the air conditioner has been used for an extended period or on an intense setting.</li>
<li><strong>A blocked air filter: </strong>An air conditioner needs good airflow to work at optimal levels. If it becomes blocked, ice can start to collect, putting pressure on the fan and eventually causing a breakdown.</li>
<li><strong>Broken belt: </strong>Some AC units, mainly older ones, run with a belt that connects the motor to the fan. As this component wears, it may slip or break, causing the fan to stop working.</li>
</ul>
<h2>What to do if your evaporator coil is beyond repair</h2>
<p>If your evaporator coil breaks, call an HVAC technician to investigate the problem. Sometimes, the system may need a replacement coil; however, it could be more serious.</p>
<p>You should never attempt to replace or fix the evaporator coil yourself, as this may make matters worse. Instead, trust a fully qualified HVAC engineer to inspect and repair the system.&nbsp;</p>
<p>If you need a new air conditioning unit, contact the team at BOXT for an installation quote.</p>

How to tell if the evaporator coil in your air conditioner is broken

An efficient compressor is essential for the life of your air conditioning system. Learn about its function, common issues and cost here.

<p style="text-align: center;"><img src="https://cdn.buttercms.com/Pq7FRYKBTuCido2GIzAd" alt="undefined"></p>
<p><span style="font-weight: 400;">An efficient compressor is essential for the life of your </span><a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a><span style="font-weight: 400;"> system, as it contributes to producing the cool air that circulates your home. It comes as no surprise that the compressor, being the heart of the A/C system, is the most costly to replace.&nbsp;</span></p>
<p><span style="font-weight: 400;">In this handy guide, provided to you by our specialists at </span><span style="font-weight: 400;">BOXT</span><span style="font-weight: 400;">, we will explain the function of the compressor in an A/C system, the common issues with a compressor and the cost of replacing it.&nbsp;</span></p>
<p><span style="font-weight: 400;">We will help you catch those problems early before they become too costly.&nbsp;</span></p>
<h2><b>What does the compressor do?&nbsp;</b></h2>
<p><span style="font-weight: 400;">It is responsible for compressing the </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-refrigerant"><span style="font-weight: 400;">refrigerant</span></a><span style="font-weight: 400;"> gas to flow it through the system and remove any heat and humidity from your home.&nbsp;</span></p>
<p><span style="font-weight: 400;">The compressor does this by raising the temperature and pressure of the refrigerant. This allows for the refrigerant to flow to the lower pressure, lower temperature refrigerant in the <a href="https://www.boxt.co.uk/air-conditioning/guides/what-does-the-evaporator-coil-do-in-an-air-conditioner" rel="follow">evaporator coil</a>.&nbsp;&nbsp;</span></p>
<h2><b>How much does it cost to replace a compressor?&nbsp;</b></h2>
<p><span style="font-weight: 400;">An air conditioning compressor has a lifespan of around 10-15 years. It is quite costly to replace, with the average cost of replacing a compressor being around &pound;500.</span></p>
<p><span style="font-weight: 400;">Luckily, problems with the compressor can be detected early with this guide, to prevent you from having to break the bank. The next section will cover the most common issues with compressors and how to solve these.&nbsp;</span></p>
<h2><b>Common issues with the compressor</b></h2>
<p><span style="font-weight: 400;">If your room is damp or moist - it&rsquo;s likely to be an issue with your compressor. The compressor removes heat and humidity from your home, so if this isn&rsquo;t being removed - you know there&rsquo;s a problem.&nbsp;</span></p>
<p><span style="font-weight: 400;">If you feel that the air is a lot warmer than usual - there may be a problem with the compressor.&nbsp;</span></p>
<p><span style="font-weight: 400;">But - don&rsquo;t worry, we&rsquo;ve got it covered. Your compressor works with several other components in the system to cool the air. If these components aren&rsquo;t working as they should be - the compressor will begin to slow down. These issues may need a repair or a simple clean.&nbsp;</span></p>
<h3><b>A dirty filter</b></h3>
<p><span style="font-weight: 400;">If your <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-filters" rel="follow">filter</a> is dirty or clogged, this can prevent the air from flowing properly, causing the compressor to slow down. Simply clean the filter using a vacuum or by rinsing it. The filter may even need replacing - but not to worry, this isn&rsquo;t as costly as replacing a compressor.&nbsp;</span></p>
<p><span style="font-weight: 400;">If your filter is in top shape, closely inspect your compressor.&nbsp;</span></p>
<h3><b>A blocked compressor</b></h3>
<p><span style="font-weight: 400;">There may be something blocking your compressor. Make sure there is no debris blocking the unit.&nbsp;</span></p>
<h3><b>A worn-out compressor</b></h3>
<p><span style="font-weight: 400;">If your air conditioning system is not working as efficiently as it has been, closely inspect your compressor, and you will be able to tell whether it&rsquo;s broken, worn out or overheating.&nbsp;</span></p>
<p><span style="font-weight: 400;">You should always let a professional fix any </span><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-problems"><span style="font-weight: 400;">issues with your air conditioning</span></a><span style="font-weight: 400;">.</span></p>
<h3><b>Still having problems? Call BOXT.&nbsp;</b></h3>
<p><span style="font-weight: 400;">It is always better to get an expert to inspect and fix any issues with your <a href="https://boxt.co.uk/air-conditioning" rel="follow">home air conditioning</a>. If you are still having problems with your compressor or have any further questions, you can call us on&nbsp;</span><span style="font-weight: 400;">0800 193 7777 or message us using our </span><a href="https://www.boxt.co.uk/"><span style="font-weight: 400;">Live Chat</span></a><span style="font-weight: 400;"> service.&nbsp;</span></p>

Air conditioning compressors: function, cost and common issues

This guide explains everything you need to know about air conditioner refrigerant, from what it does to how to deal with leaks.

<p>Your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning unit</a> is filled with different components, each as important as the next, to ensure your system runs as efficiently and effectively as possible. A key ingredient to the smooth running of your system is refrigerant. To put it simply, refrigerant helps create the cool air that circulates your home through your air conditioner. Without it, your system wouldn&rsquo;t work.</p>
<p></p>
<p>What is air con refrigerant? How can you spot a refrigerant leak? This guide will explain why refrigerant plays a crucial part in the home <a href="https://www.boxt.co.uk/air-conditioning/guides/what-is-air-conditioning" rel="follow">air conditioning system</a>, how to check your refrigerant levels and also what to do if you ever spot a refrigerant leak.</p>
<h2>What is air conditioner refrigerant?</h2>
<p>The refrigerant used in air conditioning systems is usually found in either a gas or liquid form. It is a crucial component for a working system as it absorbs heat from the environment and converts it into a cool air flow when combined with the other components of your air conditioner.</p>
<h3>What type of refrigerant is used in air conditioning systems?</h3>
<p>There are many different types of refrigerant used in a variety of refrigeration products, but for air conditioning systems, there are two main types; R-22 or more commonly known as Freon, and R410A, also known as Puron. Puron is said to be much more environmentally friendly than Freon, and is the most popular choice for modern AC systems.</p>
<p></p>
<p>The type of refrigerant in air conditioning will depend on how old a system is. Manufacturers of air conditioning systems are actively looking to replace Freon with Puron entirely by 2020. Not only will it be kinder to the environment, but it will also have the same effective cooling properties. However, the only downfall is that Puron cannot be used with Freon systems, meaning that eventually, you&rsquo;ll have to replace an old system.</p>
<p></p>
<p>Freon has been used as the main refrigerant in central air conditioning systems for many years. Its use has been shown to be harmful to the environment, so, as a result, has been banned from being manufactured.</p>
<h3>What are the benefits of using R410A?</h3>
<p>Aside from being the modern choice for air conditioning systems today, there are many benefits of switching to a Puron refrigerant, including the following:</p>
<p></p>
<ul>
<li>Using a Puron refrigerant in your system provides much greater efficiency. Unfortunately, older air conditioning systems will have to be replaced as they will not work with this type of refrigerant.</li>
<li>The production of R410A is much cheaper than R22. It&rsquo;s more cost-effective for you in the long run too.</li>
<li>As mentioned previously, this type of refrigerant is much better for the environment. Being more environmentally friendly means that there will be less damage to the atmosphere. As there are still some harmful chemicals within this type of refrigerant, the damage will be significantly less than if we all continued to use Freon.</li>
</ul>
<h2>How does air con refrigerant work in an air conditioning system?</h2>
<p>Air conditioner refrigerant is the crucial part of the <a href="https://www.boxt.co.uk/air-conditioning/guides/how-air-conditioning-works" rel="follow">air cooling process</a> and is situated inside the system&rsquo;s copper coils. The job of the refrigerant is to travel through the system to the different parts of the air conditioner, changing from a low-pressure gas to a high-pressure liquid. As it does so, it absorbs heat and then releases it along its journey, helping to bring cool air to the rooms of your home.</p>
<p></p>
<p>When the refrigerant travels to the outdoor unit, it releases heat through condensation, which then forces it to cool down. When it reaches the indoor unit, the refrigerant causes evaporation because of the reduced temperature coming into contact with the warmer air. The process repeats itself which constantly blows out a steady stream of cool air, blown into a room by fans and vents.</p>
<p></p>
<p>The refrigerant cycle in air conditioning is continuous and the refrigerant itself will always stay at the same level all the way through your system&rsquo;s life. However, this is only upon the assumption that your system doesn&rsquo;t encounter a leak.</p>
<h2>How to spot an air conditioner refrigerant leak.</h2>
<p>Freon leaks in particular can be harmful, not only to the environment, but to anyone who comes into contact with the substance. There are a number of signs you should look out for, some more obvious than others:</p>
<p></p>
<ul>
<li>Warm air and low airflow - Is your air conditioning system blowing out warm air? If there is warm air being produced from the vents of your system, or if the airflow isn&rsquo;t what it should be, then this could be an indicator that you have a refrigerant leak or low air conditioner refrigerant pressure.</li>
<li>Increase in electricity bills - You may notice that your electricity bills are higher than usual. This could mean that your system has to work much harder to provide the right amount of cool air from the loss of refrigerant.</li>
<li>Noisy AC system - Your system may be much noisier than usual. These bubbling or gurgling noises can indicate a fault within the system and if there is a leaking of refrigerant somewhere along the way.</li>
<li>Refrigerant poisoning - If someone in your home is suffering from dizziness or nausea, or if they are struggling to breathe, then you should seek medical help immediately. This could be due to refrigerant being released into the atmosphere.</li>
</ul>
<h3>What to do if you spot a refrigerant leak.</h3>
<p>It&rsquo;s very important to <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-leaks" rel="follow">fix a refrigerant leak</a> as soon as it is confirmed. If you&rsquo;re not sure, you should get in touch with your <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> manufacturer and have an engineer run a series of tests to check for a leak. If your system runs on Freon, then it is even more important to get in touch with a qualified engineer; exposure to the refrigerant chemicals can be very dangerous.</p>
<h4>Choose the right air conditioner refrigerant for your system.</h4>
<p>Air conditioner refrigerant is an essential part of the running of an air conditioning system. It&rsquo;s needed to ensure you receive cool air to the right areas of your home and, by choosing the right type, it&rsquo;ll be cheaper for you and kinder to the environment.</p>
<p></p>
<p>If you need more information about your air conditioning system, use our online live chat to speak instantly with a qualified engineer. If you suspect you have a refrigerant leak or any other problem with your system, contact your air conditioning manufacturer as soon as possible for expert advice and guidance.</p>

What is air conditioner refrigerant?

This guide explains what eco air conditioning is, as well as how the different components help to reduce your carbon footprint.

<p>If you&rsquo;re concerned about the effect your energy usage is having on the environment, you may think investing in an <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> system isn&rsquo;t the most ideal option available to you. Over the years, we&rsquo;ve all tried to get into the habit of using less energy or turning off appliances in the home when not in use. Your thoughts may be that an air conditioning system will surely add to your energy consumption and increase your carbon footprint &ndash; the one thing we&rsquo;re trying to avoid.</p>
<p>Eco air conditioning can work in a number of ways to reduce that carbon footprint and lower energy costs. Investing in the right eco friendly air conditioner for your home could be beneficial for a number of reasons, as well as bringing a number of health and safety benefits to your property in the process.</p>
<p>In this guide, we&rsquo;ll explain what makes <a href="https://www.boxt.co.uk/air-conditioning/guides/green-air-conditioning" rel="follow">eco air conditioning</a>, as well as how the different components help to reduce your carbon footprint.</p>
<h2>What makes an eco-friendly air conditioning system?</h2>
<h3>The size of your air conditioning system.</h3>
<p>The size of your system is an important factor in measuring sustainable air conditioning. If your system is too small, it won&rsquo;t be able to generate enough energy to cool down your environment. As it tries to do so, it will consistently waste a lot of energy, negatively impacting your usage.</p>
<p>If your system is too large for the space, you&rsquo;ll probably be able to see one of the following signs:</p>
<ul>
<li>Your air conditioner runs in short cycles &ndash; your air conditioner may shut down after a few minutes if the space it&rsquo;s in is too small.</li>
<li>Regular cycles won&rsquo;t work &ndash; a system that is too big won&rsquo;t run on an expected cycle. Because of this, the humidity levels in the environment won&rsquo;t be reduced, resulting in your rooms not cooling as they should.</li>
<li>An increase in energy bills &ndash; because of your system constantly powering up and down, your energy costs may increase more significantly than they would if you had the perfect size.</li>
</ul>
<p>Before you choose an air conditioner, it&rsquo;s important you assess the specific area first to determine the size of the system you need. An engineer can do this for you.</p>
<h3>Heat pumps.</h3>
<p>These days, more modern AC systems have the added ability to heat up a room as well as cooling it. It basically works by reversing the cycle it uses for cooling, gathering heat energy from the air outside. The heat pump is largely environmentally friendly due to its low energy consumption, and it also doesn&rsquo;t release harmful waste gases into the air.</p>
<h3>Programmable thermostats.</h3>
<p>Thermostats are an important part of your air conditioning system if you want to go eco-friendly. You can programme your thermostat to turn off when no one is in a room or you can alter the settings in separate rooms, if you have multiple indoor units. By having a flexible system that is easily altered to your preferences, you can do your part in reducing energy.</p>
<h3>Regular maintenance.</h3>
<p>Eco friendly air conditioning and heating would not be possible without regular <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-maintenance" rel="follow">maintenance</a>. As with any appliance, they&rsquo;ll not work as effectively if there is a broken or faulty component. It&rsquo;s important to keep up to date with air conditioning inspections and have any issues checked out as soon as they arise by a qualified engineer.</p>
<h2>Eco friendly air conditioner benefits.</h2>
<p>Going eco friendly with your air conditioner has a number of positive benefits:</p>
<h3>Reduces energy costs.</h3>
<p>With a reduced energy usage, cheaper bills aren&rsquo;t far behind. Upgraded technology in a variety of systems means your system won&rsquo;t use as much energy. Newer systems in particular are more compact, meaning the amount of electricity used to run them is reduced.</p>
<p>Even though the upfront cost can be expensive, a modern system can pay for itself in the long run. The reduction in energy prices will more than make up for it.</p>
<h3>A more reliable, longer lasting system.</h3>
<p>As eco friendly air conditioning systems are more modern technology, they will be much more reliable than an older system. A newer system can increase the life span of your air conditioning units as well as give you the opportunity for a longer warranty in some cases.</p>
<h3>Quieter when running.</h3>
<p>It&rsquo;s a known fact that air conditioning units can be quite noisy in operation. Split system air conditioning units, for example, have both an outdoor unit and an indoor unit. The outdoor unit does get noisy, but the main indoor unit will be much quieter &ndash; where you need it the most. When indoors, you&rsquo;ll barely notice the sound of a working air conditioning unit, which is a big benefit.</p>
<h3>Reduces harmful emissions.</h3>
<p>The amount of energy released from any appliance all takes its toll on the environment. However, with a sustainable air conditioning system, you&rsquo;re reducing the amount of energy that is released into the environment. Heat pumps, for example, don&rsquo;t generate any cool air themselves. This prevents the need to give off any harmful emissions, meaning it&rsquo;s much safer for the environment.</p>
<h3>Legislation.</h3>
<p>Thanks to new regulations, it&rsquo;s now a requirement for all air conditioning systems to have a regular inspection. This legislation means that if a property has an air conditioning system over 12kW, then it is a requirement to have an inspection. This inspection must be carried out by a qualified assessor and you must keep your inspection documentation updated every five years. See our guide on the <a href="https://www.boxt.co.uk/air-conditioning/guides/tm44-inspection" rel="follow">TM44 inspection</a> for a more in-depth description</p>
<h4>Eco air conditioning products have endless benefits.</h4>
<p>Opting for a new environmentally friendly air conditioning system is a worthy investment. If you&rsquo;re considering a new system to replace an older one or are interested in having a particular type of unit installed in your home, take a look at our guide to air conditioning.</p>
<p>If you&rsquo;re looking for an AC system for your home, you can use our &lsquo;<a href="https://www.boxt.co.uk/find-ac" rel="follow">Find An A/C System</a>&rsquo; tool for personalised air conditioning recommendations. Alternatively, you can give us a call on 0800 193 7777 to speak to one of our qualified BOXT engineers.</p>

Eco air conditioning: components and benefits

Explore the components of an air conditioning unit that sit inside and outside of your home, including what they do and how to maintain them in this guide. 

<p>An <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> unit is a valuable piece of equipment, especially during the warmer months when our homes can be hot, if not too hot.&nbsp;</p>
<p>Whether you're looking to purchase <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning for your home</a> and want to understand how each component works, or you currently own an air conditioner and need spare parts to repair your system, you're in the right place.&nbsp;</p>
<p>Here, we explore what each air conditioning part does, how they work, and how you can maintain them..&nbsp;</p>
<ol>
<li><a href="#h_84695392657951701184923290" rel="follow">Evaporator coil</a></li>
<li><a href="#h_72042659560751701184932642" rel="follow">Filters</a></li>
<li><a href="#h_15142739765931701184947228" rel="follow">Compressor</a></li>
<li><a href="#h_67369222168741701184954979" rel="follow">Condenser coil</a></li>
<li><a href="#h_66093172871541701184972219" rel="follow">Expansion valve</a></li>
<li><a href="#h_84344076674341701184981882" rel="follow">Fan</a></li>
<li><a href="#h_78639412877141701184990128" rel="follow">Refrigerant&nbsp;</a></li>
</ol>
<h2>Internal air conditioning parts</h2>
<h3>Evaporator coil</h3>
<h4>What does the evaporator coil do?</h4>
<p>The coil contains a refrigerant/Gas and essentially acts as a heat exchanger - removing heat from the indoor air and allowing the other components of the air conditioner to cool the room.&nbsp;<br>Read our <a href="https://www.boxt.co.uk/air-conditioning/guides/what-does-the-evaporator-coil-do-in-an-air-conditioner" rel="follow">full guide on evaporator coils</a> for more information.</p>
<h4>How does the evaporator coil work?</h4>
<p>When you turn your air conditioning unit on, the indoor component pulls in warm air from the room through a fan. This warm air passes over the evaporator coil and reacts with the refrigerant, which is turned into a gas and blown back into the room to cool it. It then expels the warm air outside.</p>
<h4>How to maintain the evaporator coil</h4>
<p>Keeping the evaporator coil clean is important to ensure it's always safe and efficient. If it is not kept clean, there is the possibility of higher energy usage and the risk of a breakdown.<br>If your air conditioning system is no longer blowing out cold air, it might be time to <a href="https://www.boxt.co.uk/air-conditioning/guides/installing-a-new-evaporator-coil" rel="follow">install a new evaporator coil</a>, or you can read our expert guide on <a href="https://www.boxt.co.uk/air-conditioning/guides/how-to-repair-an-evaporator-coil" rel="follow">how to repair the evaporator coil</a>.</p>
<h3>Filters</h3>
<h4>What does the filter do?</h4>
<p>The air conditioning system filters help clean and maintain good air quality by removing particles and pollutants that may circulate through your system.</p>
<h4>How does the filter work?</h4>
<p>The filters on an air conditioning unit act as a barrier - intercepting things like dust, pollen and pet hair. As well as keeping you safe from germs, the air filter also protects other parts of the air conditioning unit, like the evaporator coil.</p>
<h4>How to maintain the filter</h4>
<p>You should replace or, at the very least, clean the filters inside your system regularly to eliminate the build-up of debris and dust. It will also help your overall air conditioning system to run more effectively.</p>
<h2>External air conditioning parts</h2>
<h3>Compressor</h3>
<h4>What does the compressor do?</h4>
<p><a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-compressors" rel="follow">Air conditioning compressors</a> change the state of the refrigerant in the system to cool your home.</p>
<h4>How does the compressor work?</h4>
<p>As the name suggests, compressors compress the refrigerant in gas form, increasing the pressure and temperature. As this gas travels through the system, the refrigerant turns back into a liquid. Once it's in the indoor unit, the refrigerant turns back into a gas, absorbs the heat from your home, and the cycle starts again.</p>
<h4>How to maintain the compressor</h4>
<p>You'll know if you have problems with the compressor because the cooling cycle will not work. To maintain the compressor, you should keep your system clean, including the coils and filters. You should also keep an eye on the refrigerant levels; if it's running out, this can put a strain on the compressor, affecting its performance.</p>
<h3>Condenser coil</h3>
<h4>What does the condenser coil do?</h4>
<p>The condenser coil removes the heat from the refrigerant before transporting it to the evaporator coil in the indoor section of the air conditioner.</p>
<h4>How does the condenser coil work?</h4>
<p>Once the evaporator coil absorbs indoor heat, the refrigerant travels to the condenser coil - at this point, the refrigerant is hot. Once the refrigerant reaches the condenser coil, the hot air is released outdoors.&nbsp;</p>
<p>Next, a fan in the outdoor section of the unit pulls outdoor air across the condenser coil - helping to remove the heat from the refrigerant and changing it back to a liquid.</p>
<h4>How to maintain the condenser coil</h4>
<p>As the condenser coil sits in the part of the air conditioner that lives outside the home, you must keep the outdoor unit free of obstructions, like leaves and branches, that can disrupt the airflow. Additionally, you should have the whole air conditioning unit serviced regularly to ensure it's in good working order and that you can detect any issues before they get worse.&nbsp;</p>
<h3>Expansion valve</h3>
<h4>What does the expansion valve do?</h4>
<p>The air conditioning expansion valve has been designed to remove pressure from the refrigerant that has been built up by the compressor. The valve works alongside the compressor and condenser to keep the cycle of gas and liquid going, which will cool down your home as it does so.</p>
<h4>How does the expansion valve work?</h4>
<p>The expansion valve helps to control the flow of the high-pressure refrigerant into the low-pressure evaporator coil. This pressure drop cools the refrigerant, which absorbs hot air through the evaporator coil, cooling the air.</p>
<h4>How to maintain the expansion valve</h4>
<p>You should undertake regular visual inspections of the whole AC system, including the expansion valve, to spot any signs of damage, leaks or corrosion. If you do notice any damage, you should contact a qualified HVAC technician to take a look.&nbsp;</p>
<h3>Fan</h3>
<h4>What does the fan do?&nbsp;</h4>
<p>The fan can be found in the outdoor unit; its main job is to release the heat from your home from the condenser coil.</p>
<h4>How does the fan work?</h4>
<p>As the refrigerant releases heat to the condenser coil, the fan blows outdoor air over the coil, helping to cool the refrigerant. The fan is crucial to the air conditioner's efficiency, as it operates in conjunction with other key components, like the condenser coil and compressor.</p>
<h4>How to maintain the fan</h4>
<p>Ensuring the fan is clear and undertaking visual inspections before use will ensure the smooth running of the unit. If the fan breaks or one of its blades becomes damaged, you may hear a clunking sound, so keep an ear out for any unusual noises if you suspect something is wrong. You should also wipe the blades regularly to avoid the build-up of any dust on them.&nbsp;</p>
<h3>Refrigerant</h3>
<h4>What does the refrigerant do?</h4>
<p>Air conditioning refrigerant passes through the entire system as the different components do their jobs.</p>
<h4>How does the refrigerant work?</h4>
<p>The refrigerant works in both liquid and gas forms and works to absorb heat before converting it into cool air as it passes through the system.</p>
<h4>How to maintain the refrigerant</h4>
<p>It is good practice to check for refrigerant leaks before and after you use your air conditioner. The signs of a leak include:&nbsp;</p>
<ul>
<li>Warm air and low airflow</li>
<li>Increase in electricity bills - this may indicate your system is having to work much harder than normal</li>
<li>Noisy system</li>
</ul>
<p>If you spot a leak, you should contact an HVAC technician immediately.&nbsp;</p>

<h2><b>Choose an air conditioning unit from BOXT</b></h2>
<p>If you're fed up with struggling to sleep and having to listen to a fan whirring all day, air conditioning could be for you. At BOXT, we stock a full range of leading manufacturers and could fit your new system as early as tomorrow.</p>
<p>Unsure what sort of system you need? Don't worry; our <a href="https://www.boxt.co.uk/find-ac/" rel="follow">Find an AC</a> service will do all the work for you. Simply answer a few questions about your home, and we'll recommend systems from leading brands. So you can pick the price most suitable for your budget.&nbsp;</p>
<p>Alternatively, you can check out the <a href="https://www.boxt.co.uk/guides?category=air-conditioning" rel="follow">air conditioning guides</a> on our website. Here, we provide tips and advice on selecting, replacing and <a href="https://www.boxt.co.uk/air-conditioning/guides/air-conditioning-maintenance" rel="follow">maintaining your air conditioning unit</a>.&nbsp;</p>

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