Troubleshooting With Error (Washer) - LG W3S1 Series Service Manual

7-3. Troubleshooting With Error (Washer)

CAUTION
• Be careful of electric shock and short circuit between parts when measuring output for fault diagnosis.
• When diagnosing faults, check the terminal coupling and wiring of each part first.
• About 220V is applied when each terminal is energized (excluding the sensor department).
• Refer to electrical wiring diagrams and circuits for the final between components.
(The final diagram can be found in the MCS app.)
When the washing machine is not turned on
When measuring the outlet voltage, is it
110 volts?
Yes
Is the LED (1) illuminated at power-on?
Yes
Is the NA101 connector missing or out of
contact?
No
Is the withdrawal line from Display PWB
Assembly broken?
Yes
Display PWB Assembly change.
No
No
Yes
No
- 38 -
Isn't that a blackout?
Is the fuse box fuse blown?
Does the circuit breaker
work?
Main PWB Assembly
change.
Connector re-connection
and poor contact repair
Main PWB Assembly
change.