Defrost Heater Error (Er Dh) - LG LMX25964 Series Service Manual

8-5 Defrost Heater Error (Er dH)
No Checking flow Result & SVC Action
1 Check the Door gasket.
2
3
4
5
6
Check the Defrost control part.
Defrost Heater
Input Test 3 Mode.
(Push the button 3 times)
Check the Blue(Pin4) to Orange(PinD) at
CON3 on the main PCB
<CON3>
Release the test mode.
Push the button 1 times. (Normal)
Check the Blue(Pin4) to Orange(PinD) at
CON3 on the main PCB
<CON3>
0_
Fuse-M
Other Change Fuse-M
Defrost 34~42 _ Goto the 3
Heater Other Change Fuse-M
0 _ Go to the 3
Defrost
Sensor
Go to the 3
Infinite
ohms
Check the resistance of
the defrost sensor wires
back to the main PCB.
If they are open
between the Main PCB
and the connector for
the icemaker it will be
necessary to replace
the refrigerator.
112 ~ 116V Go to the 5
0 V Replace Main PCB
0 V Normal
112 ~ 116 V Replace Main PCB
- 27 -