LG LFX28978 Series - Food Placement Guide

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8-5 Defrost Heater Error (Er dH)
Fuse-M
Def
Heater
Def
Sensor
0
34~42
0
OFF
Go to the 3
Change Fuse-M
Go to the 3
Change Fuse-M
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 to Orange.
Result & SVC Action
Fuse
M
Def Heater
Def
Sensor
5 Release the test mode.
Push the button 1 times. (Normal)
<CON3>
<CON3>
Result
112 ~ 116 V
0 V
SVC Action
Go to the 5
Replace Main PCB
6 Check the Blue to Orange.
Result
0 V
112 ~ 116 V
SVC Action
Explain to customer
Replace Main PCB