Compressor Malfunction

COMPLAINT--Cooling is not adequate.





Condition
- The low side gauge reading is too high.
- The high gauge reading is too low.
- The sight glass is free of bubbles and the system is fully charged.
- The discharge air from the evaporator is not sufficiently cool.

Diagnosis--Internal leak in the compressor.

Correction
- Depressurize the system.
- Renew the compressor and the dryer bottle.
- Evacuate the system using a vacuum pump.
- Charge the system with new refrigerant.
- Operate the system and check the performance.