Compressors

An Air Conditioning Compressor is used to compress the coolant - in a home HVAC system, this would be freon. The gas becomes hot and turns into high pressure freon gas. The hot gas then runs through a series of coils in order to dissipate and then condenses into a liquid.  If the refrigerant becomes low, this will cause the low pressure switch to trip and the compressor will not be allowed to run. Compressor replacements can be very expensive. The cause for a compressor not performing could be low refrigerant, wiring damage or actuator failure, so always get a second opinion before replacement.