LG TD-C7014 series Service Manual page 22

11 DIAGOSTIC TEST
Test 2 DOOR SWITCH / LAMP CHECK
Trouble Symptom : Malfunction of lamp operation and door switch
Measurement condition : Check if they are working while being connected to power supply.
Hook
WH3 YL3
1 2 3 1 2 3
Check the short of harness
assembly(white and white wire)
and the connection(WH3)
No operation of pump motor
Displays in case of the door closed.
The door must be closed and start.
When door is opened, lamp
turns on?
(Tumbling stops)
When door is closed, lamp
turns off?
When "Start" button is on, the
dryer is working?
When door is opened or
closed, door switch hook is
not broken?
• With door closed, check voltage of
connector WH3
which are pulled out from controller
in advance. The voltage range is
between AC 215~245V?
Check or replace Controller Assembly
Replace Harness and connector
• With door closed, check
voltage of connector WH3
and YL3
out from controller in
advance. The voltage range
is between AC 215~245V?
YES
NO
NO
and YL3
YES
which are pulled
2 2
Check door switch
movement.
NO
- See the left picture.
Check and replace lamp.
- See the x page
YES
• Door switch is working
normally.
YES
• Replace door hook and
close the door.
• Door frame is distorted
NO
• Check door switch
- See x page
NO
• Check Harness
YES
• Check and replace
Controller