How to Troubleshoot & Replace Whirlpool AP6022400 / WPW10503278 Refrigerator Electronic Control Board

I replaced the defrost thermostat, that worked for awhile, but several months later, it happened again. This time I replaced the control board and decided to replace the thermostat again, so far so good. The how to videos on this site were very helpful. 

I ordered the electronic control board. A youtube search showed how to remove the cover panels. I installed it in a matter of a few minutes. Today is day two after the repair, and the freezer coils look normal now with a light coating of frost. 

Used APP website to help diagnose problem. Began with replacing both defrost heater and thermistor sensor as a starting point knowing that those could be the cause and were inexpensive as a first effort. About an 1.5 hours worth of effort to disassemble and replace components. Fired up the fridge and hoped for the best. I kept a small temperature gauge in the fridge compartment and observed daily. It was maintaining 38 to 40F but compressor never stopped running. Stayed cool until 12-15 days later I saw the temperature creeping up to ~ 50F. Opened the freezer and observed excessive frost build-up on the freezer coil thus knowing that it is likely the control board. I researched the part number and found cheaper generic alternatives on Amazon but all received poor reviews and early failure of the boards. So I ordered the control board from APP and received the next day. It was a 10 - 15 minute replacement effort including reprogramming to enter the fridge configuration code. Wahoo! Fridge works great now, compressor cycles and turns off with temperature being satisfied and the freezer coil defrost function is working as it should. Frig temp stays at 38F. Fingers crossed as the cost was a fraction of the price of a new equal class fridge which would be $1800 to $2300 + tax! 

Replaced the electronic control board. 

One morning my wife and I noticed that the milk in our 13-year old Amana ABB2222FEQ refrigerator-freezer tasted warm. We check the temperature of the refrigerator section. It was 55 degrees, even though the freezer was below zero. The cooling coils in the freezer compartment were completely iced up. We took everything out of the freezer and defrosted the coils (what a pain), but in a couple of days they had iced up completely again, blocking the airflow to the refrigerator section. We checked online at Appliance Parts Pros and learned that the problem was either the circuit board or the freezer temperature sensor. We used the built-in diagnostics to test the sensor; it was OK, so we ordered a circuit board. I followed the online video on how to replace it. It only took 10 minutes or so and now the fridge is as good as new. Even though the circuit board was nearly $200, it sure beat paying $1000+ for a new fridge and we did not add an otherwise perfectly good appliance to the land fill. 

Used the Appliance Parts Pros site to diagnose the problem and later, replaced the Jazz board. A successful father-son repair project. 

New control board. 

Replaced the control board. It took about 10 minutes. It was a simple fix and the resource videos made it even easier. 

Changed the control board. 

I replaced the Electronic Control Board, which is located within the dome light assembly inside the upper (refrigerator) compartment. That appears to have done the job. I ordered the part and paid for overnight express shipping. The part arrived the next day. I reviewed the installation video provided on ApplicancePartsPros website. The whole process took maybe 20 minutes. It was pretty straightforward. You do have to program a code into the board once it is installed and the power is restored, but that too was a simple matter of following the instructions that came with the board. The only difficult part was figuring out how to release the portion of the dome light assembly that contains the board. You push back on the clear plastic light covering to release it. Then, you have to take a large screwdriver and maneuver it into the two slots that are only visible if you place your head back into the refrigerator and look into the area that clear shield was covering. A screwdriver helps you release those two tabs, while you pull down on the white plastic cover containing the board. I removed the top right shelf of the refrigerator in order to make enough room to look in and see what I was doing.