Workshop Manual

1A–54
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Diagnosis
Condition Possible cause Correction
Noise from compression
Defective rotor/piston Replace compressor/cylinder and
shaft assembly
Defective shaft Replace compressor/cylinder and
shaft assembly
Noise from magnetic clutch
Defective bearing Replace magnetic clutch
Defective clutch Replace magnetic clutch
Clearance between drive plate and
pulley not standard
Adjust the clearance or replace
magnetic clutch
Insufficient cooling
Defective gasket Replace compressor/gasket
Defective rotor/reed valve Replace compressor/valve plate
Defective trigger valve/suction valve Replace compressor/suction valve
Not rotating
Defective rotor/piston Replace compressor/cylinder and
shaft assembly
Defective shaft Replace compressor/cylinder and
shaft assembly
Rotating parts seized due to
insufficient oil
Replace compressor
Oil and/or gas leakage
Defective seal Replace compressor/shaft seal
Defective O-ring Replace