LG WD14800RD - Fault Diagnosis and Trouble Shooting; Troubleshooting

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8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING
1. Be careful of electric shock or disconnecting the parts while trouble shooting.
2. First of all, check the connection of each part terminal with wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly.
NO
NO
YES
YES
YES
NO
NO
YES
<PWB ASSEMBLY (MAIN)>
<PWB ASSEMBLY (MAIN)>
Check the fuse?
Replace MAIN PWB
ASSEMBLY
Reconnect the PWB
ASSEMBLY
Reconnect the PWB
ASSEMBLY
When measuring the voltage of the outlet,
is the voltage AC 220-240V~?
Is the led(1) on?
Is connector(2) disconnected or
disassembled?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO POWER
CAUTION