Test 5 Door Switch Test - LG GDL1329CGS3 Service Manual

Test 5
Door switch test
WARNING
• Before measuring resistance, be sure to turn power off, and do voltage discharge. (When discharging,
contact the metal plug of power cord with the earth line.)
• Failure to follow these instructions can result in death or electric shock.
Trouble Symptom
Measurement Condition
BK2 YL3
YL3
BL2
Door opening is not sensed. (During operation, when opening door, drum motor and
Heater run continuously) Door close is not sensed.
(Drum motor will not operate. Display will flash at 1/
Turn the dryer's power off, then measure resistance.
Measure while door is closed. Check it resistance is
below 2500 ‰ between YL3-
BK2- Connector
2
YL3,BL2 after taking WH1,BL2 out from Controller.
Measure while door is open. Check it resistance is
300~60 ‰ between YL3-
(Black wire). Connector YL3,BL2 after taking
YL3,BL2 out from controller.
Measure while door is open. Check it resistance is
below 1 ‰ between BL2-
YL3- (White wire) after taking connector YL3,BL2
1
out from controller.
Measure while door is closed. Check it resistance is
below 1 ‰ between BL2-
YL3- 1 (White wire) after taking connector YL3,BL2
out from controller.
Check hontroller.
Check harness-linking connector.
(White wire) and
1
NO
(White wire) and BK2-
1
YES
(Yellow wire) and
1
NO
(Yellow wire) and
1
YES
54
• Door switch
check (Refer to
YES
component
testing.)
• Check lamp. (When
opening lamp,
replace then
2
NO
measure again.)
• Door switch check
(Refer to
component testing.)
• Door switch
check (Refer to
YES
component
testing.)
• Door switch
check (Refer to
NO
component
testing.)