![]() This is a serious issue that needs to be fixed right. Ice build-up can mean that the system is losing refrigerant, or the evaporator coil may be blocked with dirt or debris. If the AC compressor is failing to turn off, check the evaporator coil for ice. AC compressor issues Air conditioner compressor won’t turn off What we can recommend are some non-mechanical solutions, and pointing out the causes of common problems so that you better understand the issue. It’s a complicated piece of machinery that requires specialist training to understand, and the odourless, tasteless, and invisible refrigerant gas used in an AC system can kill you if you inhale too much. Air conditioner troubleshooting compressor problemsīefore we start, we want to make it absolutely clear that you should not attempt to mechanically fix your compressor yourself. When these build up, they can damage the compressor, the fan, or the condenser, so it’s important to keep it as clear as possible. The one thing that you can do to prolong your compressor’s life is to keep your outdoor unit (also known as the condenser unit) free from any leaves and other debris. They typically last for about 10 to 15 years. Provided your AC system is regularly serviced (we recommend once a year), your compressor should take care of itself. How to maintain an air conditioner compressor It also requires a power source, and so much be connected to the electricity in your home. The compressor is connected to the rest of the system with copper refrigerant piping, which allows the refrigerant to circulate. A scroll-type compressor is tough to explain with words alone-this video does an excellent job of explaining how it works, using animated illustrations. Most modern air conditioners use a scroll type compressor. There are three common types of air conditioning compressors-the reciprocating compressor, the rotary compressor, and the scroll compressor. It’s then pumped back outside to the compressor again to restart the cycle. At this point, it passes through a restrictor or expansion device, which lowers the pressure of the refrigerant and causes evaporation, which cools the air down. As the refrigerant gas cools, it turns into a liquid, and the compressor pumps it indoors towards the evaporator. The cooling/condensing of the hot gas is achieved by drawing ambient air through the condensing coil using a fan, which leaves as hot air. ![]() The air conditioner’s compressor works by compressing refrigerant vapour, which increases its pressure and turns it into a hot gas. It’s main job is to raise the temperature and pressure of the refrigerant vapour, so that it causes evaporation when it cools down, and produces cool air for your home. This change from high-pressure to low-pressure is possible because of the compressor, which is the part of the AC system that sits outside. This heats the air up and increases the temperature. When refrigerant is in its high-pressure state, it’s hot and condenses when it meets cool air. When in its low-pressure state, refrigerant is cool and causes evaporation when it meets warm air, which cools the air down and lowers the temperature. ![]() It’s a fluid that can repeatedly change from low-pressure liquid to high-pressure gas. Refrigerant is the magical substance that makes air conditioning possible. How an air conditioner’s compressor works In this article, we’ll explore how an air conditioner’s compressor works, some basic advice on how to maintain it, and some help with troubleshooting potential problems. This temperature change is used by the other components of the air conditioning system to create cool air, which has vastly improved the lives of anyone living in a hot country such as Australia. It’s the part that changes the refrigerant from a cool, low-pressure liquid to a hot, high-pressure gas, and then back again. A compressor is the engine of an air conditioning system.
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