I have an intermittent problem in my GE Profile side-by-side refrigerator. The refrigerator side usually stays near 37, but the freezer side has excursions from 0 up to 13 and occasionally up to 21. The length of the excursion may be as short as a couple of hours or as long as a couple of days. On one occasion when the freezer went up to 21, the refrigerator did go up to about 45, but nearly all the time the refrigerator stays at or very close to 37. On two occasions the drip pan filled with water and overflowed. When this problem first started, the excursions were only about once a week, but now there is at least one a day.

The fans all seem to be working and I cleaned the compressor way back when I first noticed the problem. I'm not sure what triggers the freezer temperature control to start working correctly, but when it does the freezer temperature goes back to 0 within 2 hours. Seems kind of like a loose connection or a bad solder joint as someone suggested in this thread, or perhaps another similar one. I will look for schematics for this model PSC23sgpass so I can check for bad connections. Any other ideas?