This is a 2 yr old PWE23KYNGFS TwinChill refrigerator. The temp will show a colder temp than the actual temp for the fridge section. Temp is set to 34F, and the "actual" often reads 32F, but the real temp is 41F. Unplug for 30 sec and replug, the actual temp will now read correctly at 41F. Over the next hour or so, the "actual" temp reading works its way back down to 32 to 34F. No matter how often this is done, the coldest real temp I can attain is 38F. These numbers can vary a bit, but there's usually a 9 degree difference between "actual" and real temp.
The upper evap fan runs fine. The evap is not iced up (blocking air flow). So I suspect a thermistor possibly? Not sure where that would be located... And why does it read the correct temp when plugged back in to power, then slowly loses that grip on reality, and reads lower after a while? I suspect that this lower reading is preventing the fridge from cooling down to the proper temp.
Anyone have an idea what to try, and where it needs to be tried, I'd be most grateful. I rather dislike the shorter shelf-life on the easily perishable foods. Thank you much...