GE FRIDGE

[zzmach1]

Interested in knowing if you can help. Refrigerator maintains a fairly constant temperature of about 38 degrees. Freezer fluctuate between 0 and 32 degrees. I checked the J2 pin for VOLTS with black probe to white wires and red probe to red wire was reading 13.9 volts. when checking with the white wires with the yellow both of them measure 10.2 volts. does this mean that the board is bad. the board is a WR55X30600 Can you direct me as to how to diagnose this board. I have replaced all 3 of the temperature sensors. And a run capacitor WR08X25466 which took care of one problem which was intermittent compressor not running so I am thinking that the problem was 2 fold the model is GNE25JSKKFSS. Thanks in advance email onecam@comcast.net