- Model Number
- 6-10 years
Defrost not working on Whirlpool Model Number WRF736SDAM11, Serial Number K34416254, so coils freeze over, but the refrigerator and freezer continue to function properly otherwise. Had a local repair guy come out, and he replaced the defrost sensor, but the coils froze up again about a month later (photo attached), and the fan starts making noise as it begins making contact with the built up ice. Now, the repair guy says the circuit board needs to be replaced, so I took the cover off and there are two boards, the Power Supply Board (W10453401), and the Main Control Board (W10589838). Before I purchase a new board, I would like to know if this is the logical solution.