LG GD1329CGS Service Manual page 56

Test 6
Heater switch test - Electric Type
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 ground)
• Failure to follow these instructions can result in death or electrical shock.
Trouble Symptom
Measurement Condition
①
②
TH3
TH2
While operating, heating will not work.
Drying time takes longer.
After turning power off, measure the resistance.
1. Is resistance between heater terminal
① and ② below 18 ~ 22Ω?
2. Is resistance between heater terminal
① and ③ below 18 ~ 22Ω?
3. Is resistance between heater terminal
② and ③ below 9 ~ 11Ω?
③
Check if the value of measured resistance is
below 1Ω between terminal TH2 (Safety Thermostat).
Check if the value of measured resistance is below
1Ω between terminal TH3 (HI-Limit Thermostat).
Check motor. Check if the value of measured
resistance is below 1Ω between terminal
① and ⑩ at RUN condition.
Check harness-linking connector.
YES
YES
YES
YES
Check controller.
55
NO
• Replace heater.
• Replace TH2
NO
(Safety Thermostat).
• Replace TH3
NO
(HI-Limit Thermostat).
• Check motor and
NO
replace it.