Fault Diagnosis And Troubleshooting - LG WDM-16350FD Service Manual

8-2.FAULT DIAGNOSIS AND TROUBLESHOOTING

CAUTION
1. Be careful of electric shock or disconnecting the parts while troubleshooting.
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.
(1)
MAIN PWB ASSEMBLY
MAIN PWB ASSEMBLY
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NO POWER
When measuring the voltage of the outlet,
is the voltage AC 220-240V?
YES
Is the LED (1) on?
YES
When measuring the voltage of White(3Pin)
connector of the PWB ASSEMBLY is the voltage
AC 220-240V?
YES
Replace PWB ASSEMBLY
NO
NO
NO
19
Check the fuse
Replace PWB
ASSEMBLY
Check the harness
Assembly