Test 5 Door Switch Test - LG DLG2522W Service Manual

Test 5
Door switch test
Caution
Trouble Symptom
Measurement Condition
Before measuring resistance, be sure to turn Power off, and do voltage discharge.
(When discharging, contact the metal plug of Power cord with earth line.)
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 0.5 second intervals.)
After turning Dryer Power Off, measure resistance.
Measure while Door is closed. Check if
resistance is below 250Ω between WH3-
(White wire) and RD3-
Connector WH3, RD3 after taking WH3, RD3
out from Controller.
Measure while Door is open. Check if
resistance is 300~60Ω between WH3-
(White wire) and RD3-
Connector WH3, RD3 after taking WH3, RD3
out from Controller.
Measure while Door is open. Check if
resistance is below 1Ω between BL2-
(Yellow wire) and WH3-
taking Connector WH3, BL2 out from Controller.
Measure while Door is closed. Check if
resistance is below 1Ω between BL2-
(Yellow wire) and WH3-
taking Connector WH3, BL2 out from Controller.
Check Controller.
Check Harness-linking connector.
(Black wire)
NO
(Black wire)
YES
(White wire) after
NO
(White wire) after
YES
25
• Door switch
Check (Refer to
YES
Component
testing.)
• Check Lamp.
(When opening
Lamp, replace then
measure again.)
NO
• Door switch
Check(Refer to
Component
testing.)
• Door switch
Check (Refer to
YES
Component
testing.)
• Door switch
Check (Refer to
NO
Component
testing.)