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LG refrigerator LFX25960SB - ERCO displays on screen

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LG refrigerator LFX25960SB - ERCO displays on screen.  Tried all the tricks about reseating the connections looking for any pinched or broken wires at the top of the door hinge.   

After resetting / reseating the connections it goes back to normal for about 30 seconds (sigh of brief relief) then back to its old ways.  

I was told by the customer that these parts have been replaced by a previous tech (note this unit was bought used)

Main control board:

http://www.repairclinic.com/vwo4/PartDetail/Main-Control-Board/EBR34917104/1463582?modelNumber=LFX25960SB

User control display

http://www.repairclinic.com/vwo4/PartDetail/User-Control-and-Display-Board/6871JB1432A/1360282

 

The only thing left is this little guy: 

http://www.repairclinic.com/vwo4/PartDetail/Relay-Board/6871JB2061B/1268316

 

I hate to guess but I don't know how to test for this kind of application.

 

Suggestions appreciated. 

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Need appliance parts? Call 877-803-7957 now!

Are you positive no wires are broken in the door? More often than not that has been the problem for me. You can ohm them out from top of the door to the dispenser. Sometimes you can give each wire a slight tug and it will slide right up if broken.

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According to LG, if you have checked for bad connections and replaced main pcb and display assembly, the issue is with wiring inside the fridge cabinet.

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Thank you very much for the insight

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