LG GC-B207, Service Manual

Page: 108 / 145

TROUBLE DIAGNOSIS
- 108 -
Problems
Causes
Checks
Measures
Remarks
High
Cycle pipe is clogged.
Check sequence.
- Heat up compressor discharging
Direr must be replaced.
temperature in
1. Check temperature of condenser
weld joints with touch, disconnect
the freezer
manually.
the pipes, and check the clogging.
compartment.
If it is warm, it is OK.
Remove the causes of clogging,
If it is not, compressor discharging
weld, evacuate, and recharge
joints might be clogged.
the refrigerant.
2. Manually check whether hot line
- If it's warm, it's OK. If it's not,
pipe is warm.
condenser discharging line weld
If it is warm, it's OK.
joints might be clogged.
If it is not, condenser outlet weld
Disconnect with torch, remove the
joints might be colgged.
causes, evacuate, and recharge seal refrigerant.
Leak at loop pipe weld joint
Check sequence.
Replace the compressor, weld,
Drier must be replaced.
(discharge) in compressor.
1. Manually check whether
evacuate, and recharge refrigerant.
condenser is warm, It is not warm and the frost forms partly on the evaporator in the freezer compartment.
Faulty cooling fan in the compressor
Check sequence.
- Replace if motor does not operate.
compartment.
1. Check cooling fan operation.
- If fan is disconnected, check fan
2. Check that cooling fan is
damage and reassemble it.
disconnected from the motor.
■
Refer to fan motor disassembly
and assembly sequence.