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Serving San Antonio and the surrounding area since 1993


Daniel was very professional and polite. He was thorough in his work.

- Longoria, San Antonio

Why Is Your Air Conditioner’s Compressor So Important?

If your thermostat serves as the “brain” of your air conditioning system, then the compressor serves as its “heart.” The compressor and condenser are housed in the outside component of your cooling system—this is called the condenser unit. Your compressors job is to add pressure to the refrigerant that it receives from inside your home to increase its energy as well as its temperature.

At that point, refrigerant leaves the compressor as a hot, high pressure gas that flows into the condenser, which has metal fins that help the heat dissipate. From here, the temperature of the fluid has considerably cooled and changed from a gas back to a liquid. The liquid goes into the evaporator and the pressure drops. The refrigerant then begins to evaporate back into a gas, extracting heat from the air around it, and cooling your home.

Why Does All This Matter?

The science of how a compressor works can be complicated for the average homeowner, and we don’t expect you to be an expert—that’s what we’re here for! But understanding the function and the importance of your compressor can help you understand how important it is to take care of your air conditioner with routine maintenance and prompt service.

Without your compressor doing the job outlined above, your cooling system wouldn’t be able to work. If your compressor fails, then refrigerant won’t run through the coils and the air condition won’t provide cooling. So how do you know if your compressor is failing? Typically this is signaled by a screeching or groaning sound coming from the condenser unit.

A failed compressor is typically the result of bad bearing or contacts. Or it could be that it was overloaded due to a bad relay, which may cause your HVAC system not to turn on at all. The best way to avoid this issue is to have your AC unit regularly maintained, and to schedule repairs as soon as a problem crops up to avoid a bigger emergency later on down the road.

For compressor repairs and replacements in Alamo Heights, TX, contact Riteway Service Company today!

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