Range Rover P38
82
AIR CONDITIONING
NEW RANGE ROVER
2
FAULT DIAGNOSIS
Symptom - Compressor Clutch Inoperative
POSSIBLE CAUSE
REMEDY
1. Blown air conditioning system
fuse.
1. Check and renew fuse 8 or 17.
2. Loose electrical connections.
2. Check and tighten all electrical connections.
3. Defective electrical or
mechanical components.
3. Renew compressor.
4. Refrigerant circuit problem.
4. Check and rectify.
Symptom - Compressor Clutch Noisy
POSSIBLE CAUSE
REMEDY
1. Loose drive belt.
1. Check drive belt tensioner or renew drive belt.
2. Compressor not mounted
securely.
2. Secure as necessary.
3. Bearing in clutch pulley not
pressed in.
3. Renew compressor.
4. Clutch will not spin freely.
4. Renew compressor.
5. Oil on clutch face.
5. Check compressor seals for leaks; if apparent, renew compressor.
6. Slipping clutch.
6. Renew compressor.
7. Compressor pump seizing.
7. Renew compressor.
8. Icing.
8. Check for suction line frosting. Renew expansion valve or
receiver/drier, if necessary.
Symptom - Blower Motors Inoperative or Slow Running.
POSSIBLE CAUSE
REMEDY
1. Blown fuse.
1. Check and renew fuse 42 or 43.
2. Loose electrical connections.
2. Check and tighten all relevant connections.
3. Worn internal motor
components.
3. Renew blower motor/s.
