AIR CONDITIONING
AIR CONDITIONING FAULTS
FAULT
CAUSE
REMEDY
1.
Incorrect voltage.
1. Check voltage.
A.
BLOWER
MOTOR
2. Open or defective fuse or relay.
3. Loose wire connection including
ground.
2. Check and replace as necessary.
3. Check system wires; tighten
all connections.
INOPERATIVE
OR SLOW
RUNNING
4. Switch open or defective.
5. Tight, worn, or burnt motor
bearings.
4. Replace switch.
5. Replace motor.
6.
7.
8.
Open rotor windings.
Worn motor brushes.
Shaft binding-blade misaligned.
6. Replace motor.
7. Replace motor.
8. Check alignment. Repair or replace
as necessary.
9.
Defective resistors
9. Rectify or replace.
1.
2.
3. Defective thermostat control or
pressure switch.
Incorrect voltage.
Open or defective fuse or relay.
1. Check voltage.
2. Check and replace as necessary.
3. Replace thermostat or
pressure switch.
B.
COMPRESSOR
CLUTCH
INOPERATIVE
4. Shorted or open field coil.
5. Bearing seized (clutch will not
disengage).
4. Replace coil.
5. Replace clutch pulley assembly.
6.
Refrigeration circuit problem causing
heavy load and excessive drive
torque.
6. Check and rectify.
1.
2.
3. Compressor not mounted securely.
4. Bearing in clutch-pulley
assembly not pressed in.
Incorrect alignment.
Loose belt.
1. Check alignment; repair as
necessary.
2. Adjust to proper tension.
3. Repair as necessary.
4. Remove clutch and replace
clutch pulley assembly.
C.
COMPRESSOR
CLUTCH
NOISY
5. Low voltage to clutch.
5. Check connections and voltage.
6. Refer to B5 above.
7. Check compressor seals for leaks.
8. Refer to C5 above. Then check air
gap.
6.
7.
8.
Clutch will not spin freely.
Oil on clutch face.
Slipping clutch.
9.
10.
Overloaded or locked compressor.
Icing.
9. Repair or replace compressor.
10. Check for suction line frosting.
Replace expansion valve if
necessary.
Replace receiver/drier if necessary.
D.
CONDENSER
VIBRATION
1. Motor and/or blades improperly
mounted.
2. Foreign matter build-up on
blades.
1. Check mountings, adjust as
necessary.
2. Clean blades with a suitable
non-inflammable cleaner.
3. Replace motor.
3.
Excessive wear of motor bearings.
FAULT DIAGNOSIS
1
| Categories | Land Rover Discovery, Range Rover |
|---|---|
| Tags | Land Rover |
| Model Year | 1995 |
| Download File |
|
| Document Type | Workshop Manual |
| Language | English |
| Product Name | Discovery |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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