Air-conditioner compressor: common defects and their signs

1. Mechanical damages of housing:
   • Oil leaks on the housing.
   • Leakage of coolant in locations of elements connection.
   • Rumbling of the compressor when the air-conditioner is turned on.
2. Jamming.
   • Noise of the compressor when ignition is turned on and the AC is off.
   • Insufficient air cooling.
   • Absence of click during AC turning on.
3. Depressurisation.
   • Insufficient cooling of the cabin.
   • White foam in the inspection window of AC filter-drier.

How to repair or replace air-conditioner compressor?

Duration of compressor lifetime depends on correctness of air-conditioner installation in the car and following its operation rules. If even one of the above signs appears, it is necessary to visit a service station for a diagnostic.

The compressor is repairable in case of housing mechanical damage or its components wear-out. A jammed part must be replaced.

Since coolant is toxic substance, works on repair and replacement of the car compressor should be performed at a service station.