Derek for Model Number WRF560SFYB00 This refrigerator frosts up the back wall of freezer every five weeks. When I put it in the test mode defrost system works properly. I replaced the board. still having the same issue.
Answer Derek, If you have replace the control board and this did not correct the issue then the evaporator thermistor would be the most likely cause for the unit to not go through defrost. Read More... Answered by AppliancePartsPros.com | Friday, April 22, 2016