GE Profile Refrigerator Model PFSF5NJWABB - Possible bad Invertor/main board/compressor?

[Dude with a meter]

Refrigerator is not cooling or freezing.  Lights are on, fans are on, water dispenser works - main board signal voltage to invertor is bouncing between 4.8 - 5.1 VDC constantly.   There is 120 VAC to the invertor and the compressor windings all measure 6.5 ohms.  No shorts from any compressor leads to GND. How do I know that the compressor is not frozen?  Is the bouncing signal voltage to the invertor normal?  I tried measuring the signal voltage with the signal wire disconnected and the voltage was still fluctuating although it was higher.

[LI-NY Tech]

With DC and AC voltage to the inverter but no compressor operation it's about a 99% chance that the inverter is the problem.  I've never seen one that wasn't.  

[Hiroshi]

I agree 100%  3-6VDC is what the signal voltage should be ...buy the cheapest one GE makes and just swap the gray box if it wont mount the same

Part number: WR49X10283

[BrewHobbyTech]

On 7/26/2016 at 0:50 AM, Dude with a meter said:

Refrigerator is not cooling or freezing.  Lights are on, fans are on, water dispenser works - main board signal voltage to invertor is bouncing between 4.8 - 5.1 VDC constantly.   There is 120 VAC to the invertor and the compressor windings all measure 6.5 ohms.  No shorts from any compressor leads to GND. How do I know that the compressor is not frozen?  Is the bouncing signal voltage to the invertor normal?  I tried measuring the signal voltage with the signal wire disconnected and the voltage was still fluctuating although it was higher.

I don't have good news but I can give a least one suggestion....or ask a question....and then give a suggestion......

Have you tried giving it a swift(hard) kick?  

 

I'm actually in the beginning process of trying to learn how to repair these inverter boards. I have an o-scope from back in the days I went to electronic school........I don't know if I'll be able figure out how to repair these boards, but if I do.......I'd be able to retire soon........hey, I can dream.........