FIXED GE Cafe - oscillating voltage from MB to inverter CYE23TSDCSS?

[RSW]

Model Number

CYE23TSDCSS

Brand

GE

Age

6-10 years

Thanks to plenty of prior posts I replaced the inverter board on my 8 year old GE fridge and it's working fine again. However, when checking the voltage to the inverter board I see it fluctuates a lot, as in the meter not staying on the same voltage at all (moving around all the time, within a range of +-0.5V. When I replace the MB for a new one I got as I was troubleshooting the inverter fault, I noticed the new MB sends a steady voltage signal to the inverter board. The current, old MB does not send a steady voltage signal.

1) Is this by design or is the MB faulty as well?
2) Could the oscillating voltage from the MB have caused the inverter to fail?

The MB was more than $250 so don't want to keep it unless really worth it!

 

[Jake]

Those are good questions, but I don't know either.

Another member was mentioning the same as you per the voltages:

FIXED - GE PFE29PSDASS Not Cooling, Troubleshooting Board Voltage

GE Refrigerator model #PFE29PSDASS stopped cooling. The compressor fan runs, but there is not vibration from the compressor. I have noticed that if I plug it in after sitting unplugged I have a quick little blip (2-3 secs) of vibration from the compressor. I did quite a bit of searching around...

www.applianceblog.com

9 times out of 10 the compressor inverter board fixes it, so I wouldn't install the MB(motherboard) since the compressor inverter board fixed yours.

Here's the compressor inverter board for your model, in case others need it too:

GE WR87X29409 Compressor Inverter (AP6332922) - AppliancePartsPros.com

This is an inverter compressor that is used on refrigerator and freezer appliances. An inverter compressor is a mechanism that pumps freon to cool a refrigerator or freezer. The inverter compressor is much more efficient than the traditional compressor.A new inverter compressor may be needed if...

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