Jenn Air JFI2589AEP to cold
I am stumped. I have a French door bottom freezer refrigerator JFI2589AEP and the fresh fridge part is freezing food in the two bottom fruit/vegetable drawers and the right door milk shelf. All gasket look new, we returned from a 3 day trip away to find all the vegetables frozen solid.
I have put the fridge into diagnostic mode per the cut sheet attached to the back of the fridge. The only sensor that seemed out of wack was the FF thermistor. It reads 46degrees and fridge is set to 36. All vegetables and milk frozen. Nothing else frozen on the shelves above. I tried raising the set temp to 46 and nothing seems to change.
I have verified the damper, which is located in the ice maker (top left inside fridge) is operational. Self Diagnostics test allowed me to open and close it and I can see it work fine. When closed the fridge still seems to push air thru the right front part of the cabinet into the milk shelf located in the door. When it’s calling for cooling the damper is open and I feel the cool air come from the back left. The port that feeds the front right door is adjustable but I never had to mess with it before. The two bottom drawers are also fed by a tube in the rear with a humidity slide.
I replaced the FF thermistor (part 16) located in the top of the fridge in the light assembly with a whirlpool factory part. After restart it it started at 60, dropped to 38 after an hour, then overnight back to the 46 again and food frozen. My fridge does not give an actual temp on the screen unless it triggers a high food temp warning. I have to put the fridge in diagnostic mode and scroll thru and read sensor 141,142,143. Fresh food, freezer, ambient. All look normal except the fresh food. Always reads high. I also bench tested the old thermistor and new one side by side and they both were the same so I figured I just wasted my $, it was only $40 so I put it in anyway and no change.
Thermistor value in the freezer indicates -2 to 2 degF, set temp 0, so I did not change that one.