Compressor HVAC: Testing and Inspection

Compressor Noise And Compressor Clutch Diagnosis Chart:

COMPRESSOR NOISE DIAGNOSIS
Excessive noise while the A/C is being used, can be caused by loose mounts, clutch, or high operating pressure. Verify compressor drive belt condition, proper refrigerant charge and head pressure before compressor repair is performed.

For noise diagnostic procedures, refer to the Compressor Noise and Compressor Clutch Diagnosis Chart.