LG LFX2597 Series - Defrost Heater Error (Er dH) Diagnosis

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8-5 Defrost Heater Error (Er dH)
Fuse-M
Defrost
Heater
Defrost
Sensor
0
Ω
Other
34~42
Ω
Other
0
Ω
OFF
Go to the 3
Change Controller Assembly
(Position No.400A )
Go to the 3
Change Controller Assembly
(Position No.400A )
Go to the 3
Replace product
Part Result SVC Action
No
1
2
Checking flow
Check the Door gasket.
Check the Defrost control part.
3 Input Test 3 Mode.
(Push the button 3 times)
4 Check the Blue(Pin2) to Orange(Pin9) at
CON3 on the main PCB
Result & SVC Action
Def' Heater
Fust
M
Def'
Sensor
5Release the test mode.
push the button 1 times. (normal)
<CON3>
Result
112 ~ 116 V
0 V
SVC Action
Go to the 5
Replace Main PCB
6 Check the Blue(Pin2) to Orange(Pin9) at
CON3 on the main PCB
Result
0 V
112 ~ 116 V
SVC Action
Explain to customer
Replace Main PCB
<CON3>