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Problems | Causes | Checks | Measures | Remarks |
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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 |
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the freezer |
| manually. | the pipes, and check the clogging. |
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compartment. |
| If it is warm, it is OK. | Remove the causes of clogging, |
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| If it is not, compressor discharging | weld, evacuate, and recharge |
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| joints might be clogged. | the refrigerant. |
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| 2. Manually check whether hot line | - If it's warm, it's OK. If it's not, |
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| pipe is warm. | condenser discharging line weld |
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| If it is warm, it's OK. | joints might be clogged. |
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| If it is not, condenser outlet weld | Disconnect with torch, remove the |
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| joints might be colgged. | causes, evacuate, and recharge |
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| seal refrigerant. |
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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. |
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| condenser is warm, It is not warm |
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| and the frost forms partly on the |
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| evaporator in the freezer |
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| compartment. |
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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. |
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| disconnected from the motor. | ■ Refer to fan motor disassembly |
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| and assembly sequence. |
TROUBLE DIAGNOSIS
