I am experiencing similar issues - GE, Arctica, Model # PSI23SGRB SV - I've had ongoing issues with the Freezer temperature rising (sometimes to 20+ degrees) and a knock-on effect (?) on the Fridge (since the air appears to be recycled through (?) - taking it up to high 40's). I have replaced the thermistor (was bust open) and all 3 temp sensors (one in Freezer, 2 in fridge) and although it's improving (i.e., seems to jump around less frequently), it's still rising (the ice cubes are all one, melting together). My next step was going to be to replace the logic board, but your last post (cbmserviceguy) makes me think this is a repair beyond my level of competence! What do you think? Just call in the experts or try buying/replacing the logic board? FYI, there was a new logic board replaced about 3 years ago, and when I replaced the sensors and thermistor, I noticed that they'd also been replaced previously. Any advice gratefully received. Thanks in advance.