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FIXED PFE29PSDBSS GE Refrigerator Compressor Not Running

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rickgburton

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3rd board's a charm? I know it sounds hard to believe, but it doesn't surprise us. We've seen this happen many times. OK, here it is in black and white, and as they say, straight from the horse's mouth...LOL
I marked the important parts.

Snapshot_1.jpg

Snapshot_2.jpg
 

JacobJHofer

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Platte SD
We put a oscilloscope on the low voltage wires on the inverter and when we started the compressor up in service mode the Pulses changed
the ohm reading between the compressor pins is 6.9 to 7.0 ohms according to the paper that is low
 

rickgburton

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...... when we started the compressor up in service mode the Pulses changed the ohm reading between the compressor pins
I don't see how that's possible. You should never measure resistance when the machine is powered.
 

rickgburton

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Too low. Inverter voltage is supplied from the board. GE says it should be 4-6 VDC and if you only have 2.6 I have to conclude the board is bad. Wouldn't you agree? 7Ω between any too pins on the compressor (wires removed) seems too low but if you have the same resistance for all measurements it's probably OK.
 

rickgburton

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The inverter only gets 6 VDC from the board and it's not even getting that right now. Did you replace the 2nd board?
 
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