Compressor HVAC: Testing and Inspection

COMPRESSOR NOISE
Excessive noise that occurs when the air-conditioning is being used may be caused by:
- Loose Bolts
- Mounting Brackets
- Loose Compressor Clutch
- Excessive High Refrigerant Operating Pressure

Verify the following before compressor repair is performed:
1. Compressor drive belt condition
2. Proper refrigerant charge
3. Thermal Expansion Valve (TXV) operating correctly
4. Head pressure is normal