Ge profile PSS25MGMA not fully cooling

[dj2016]

15yr old ge profile refrigerator. Noticed freezer contents like ice cream softer than usual suddenly. Condenser fan appears to be running slower than I would expect to keep it cool. Metered voltage at J2 T3&5 is 4.35 which I understand should be in the 12/8/4v range depending on if it is a variable voltage compressor which I believe it is based on what I think is the invertor to the compressor.  J2 Pin 3&8 give 13.38v within the 12-14 proper range. Placed a fan behind which seems to help get it cooler inside.

Temperature in freezer doesn't seem to want to get below 5F with fridge at 38F.

Not sure if the fan is supposed to run at 2 speeds but it doesn't seem to change.

The resisters on the Main board don't appear to be burned.

 

 

 

 

 

[Hiroshi]

If freezer temp is getting to 5 degrees, you are not far from ideal temperature... I would clean the condenser coil as best you can, a blast of air does well penetrating these cylindrical coils- I tend to shut the unit down and blast it while I have a vacuum at the fan opening side. I have found almost all of these GE machines need a new main control board at year 8-10, so to be chugging along at year 15 is ahead of the curve, but the most consistent way to check fan speed on these is to swap out the main board and look for a comparative difference in fan RPM. (either cond. or evap fan.) The main control uses "pulse width modulation" to dictate fan speed, they are variable speed.  Check for a burnt solder joint on the back of the main board, as this can cause intermittent compressor start and warming spells in its beginning stages of failure...Part number: wr55w10942

Part number: wr55x10942