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TROUBLE DIAGNOSIS
-58-
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.