Whirlpool Refrigerator - Freezing Food

[AbeG]

Model: WRT318FZDW02

I have a fridge that is freezing the food. The fridge gets down to 20-25 F. I've replaces the control board, the thermistor in the fridge and in the freezer. I've actually replaced the control board twice because i was convinced that the first board was faulty. An odd kink is that the control board has one button and four temp setting, each setting has an LED light. When i installed both of the replacement control boards that i got from the Genuine Replacement Parts the fourth (coldest) setting isn't a part of the cycle when you push the one adjustment button and cycle through the temp settings. Did they send me the wrong board, twice, or is there something else i should be looking at?

the fridge does not have an automated damper. It's a manual turn knob. 

Thank you-- Abe

 

[Jazz Appliance Repair]

did this get resolved? i see one of these fridges this week. same issue

 

[Daniel.A]

@Jazz Appliance Repair Unless I'm missing something, this fridge generates the cold air in the freezer, and then pushes it down through the diffuser into the fridge. Therefore, if the fridge is getting too cold, then too much cold air is going down through. So, I would focus my attention to what regulates the airflow from the freezer to the fridge. Since the author of this post mentioned that is is a manual knob that changes that (and since I didn't see anything on the wire diagram to suggest an electric damper), I would ensure the mechanical connection is intact, and I would visually inspect the damper itself to see if there is any ice or other obstructions.

[Jazz Appliance Repair]

Sorry I meant to follow up on this. The problem was actually a bit counter intuitive. It had a sealed system problem, low or leaking refrigerant. Big ice ball at the evap inlet. The freezer was at 20 degrees so the the freezer never reached proper temp, which seemed to cause the compressor to run constantly and consistently circulating cold air into the fridge.

[Budget Appliance Repair]

@Jazz Appliance Repair seems to be a somewhat common theme with this style of newer Whirlpool top mounts - low on r134a, runs constantly trying to cool correctly, freezes items on top shelf of refrig where the below freezing air is constantly blowing onto the top shelf but doesn't every get the freezer down to zero, (usually only in the below 32 degree freezing area).

Very easy to head fake you if you don't look at and observe frost pattern on evaporator.