LG DLG2522W Service Manual - Page 27

Test 6 - no heat

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Test 6 Heater switch test - Electric Type Caution 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.) Trouble Symptom While operating, Heating will not work. Drying time takes longer. Measurement Condition After turning Power off, measure the resistance. TH3 TH2 1. Is resistance between Heater terminal and below 18 ~ 22Ω? 2. Is resistance between Heater terminal and below 18 ~ 22Ω? 3. Is resistance between Heater terminal and below 9 ~ 11Ω? NO • Replace Heater. YES Check if the value of measured resistance is below 1Ω between terminal TH2 (Safety Thermostat). NO YES • Replace TH2 (Safety Thermostat). Check if the value of measured resistance is below 1Ω between terminal TH3 (HI-Limit Thermostat). NO YES • Replace TH3 (HI-Limit Thermostat). Check Motor. Check if the value of measured resistance is below 1Ω between terminal NO and at RUN condition. • Check Motor and replace it. YES Check Controller. Check Harness-linking Connector. 26

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26
Test 6
Heater switch test - Electric Type
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.)
While operating, Heating will not work.
Drying time takes longer.
After turning Power off, measure the resistance.
Check Controller.
Check Harness-linking Connector.
Check Motor. Check if the value of measured
resistance is below 1Ω between terminal
and
at RUN condition.
YES
NO
• Check Motor and
replace it.
1. Is resistance between Heater terminal
and
below 18 ~ 22Ω?
2. Is resistance between Heater terminal
and
below 18 ~ 22Ω?
3. Is resistance between Heater terminal
and
below 9 ~ 11Ω?
YES
NO
• Replace Heater.
Check if the value of measured resistance is
below 1Ω between terminal TH2 (Safety Thermostat).
YES
NO
• Replace TH2
(Safety Thermostat)
.
Check if the value of measured resistance is below
1Ω between terminal TH3 (HI-Limit Thermostat).
YES
NO
• Replace TH3
(HI-Limit Thermostat)
.
TH3
TH2