LG TD-C70070E Service Manual page 22

DIAGOSTIC TEST
10
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.
RLY3
2
• With door closed, when "Start"
button is pressed, lamp turns off
and controller is working, but the
dryer is not working.
No operation of pump motor
Displays "
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?
Hook
When door is opened or
closed, door switch hook is
not broken?
•
RLY1
2
Check or replace Controller Assembly
Replace Harness and connector
•
" in case of the door closed.
YES
NO
NO
With door closed, check voltage of
connector RLY1 ~ RLY3
are pulled out from controller in
advance. The voltage range is
between AC 215~245V?
YES
With door closed, check voltage of
connector RLY1 ~ RLY3
which are pulled out from controller
in advance. The voltage range is
between AC 215~245V?
21
Check door switch
movement.
NO
- See the left picture.
Check and replace lamp.
- See the x page
• Door switch is
working normally.
YES
• Replace door hook
and close the door.
YES
• Door frame is distorted
which
• Check door switch
NO
- See x page
• Check Harness
NO
• Check and replace
YES
controller