LG LFXS26973 Series Service Manual page 66

GID Heater do not work
1
Check the Door gasket .
Is door gasket damaged?
No
3
Is the connector loose?
NO
3
Check Heater part.
Heater resistance
3072~3534 ?
Yes
Replace the
Yes
Door gasket
Connect the
housing
Yes
Change
NO
The door
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4 Input Test 3 Mode
(Push the button 3 times)
Check the Heater Voltage.
Is voltage 112~116V?
TEST MODE 3
CON7
11 th pin ~ 3 th
Pin
Yes
5
Input Test 1 Mode
(Push the button 1 times)
Check the Heater Voltage.
Is voltage 0V?
TEST MODE 1
CON7
11 th pin ~ 3 th
Pin
Yes
6
Explain to customer
Replace
NO
Main PCB
Voltage [V]
112V ~ 116V
Replace
No
Main PCB
Voltage [V]
0V