- Model Number
- 1-5 years
My refrigerator model WRV986FDEM01 began experiencing loss of cooling in the freezer and refrigerator sections 2 weeks ago. Upon disassembly I discovered the evaporator coils were completely frozen with ice and the evaporator fan was hitting the ice that formed. I defrosted the evaporator using a hair dryer and the refrigerator and freezer returned to normal operation. 1 week later I heard the evaporator fan hitting ice again and I checked the refrigerator and freezer temps and found they had increased. Upon disassembly the evaporator was found iced up again (see attached picture). I defrosted the evaporator again and the unit returned to normal operations. I ran the service diagnostic tests for the defrost heater and thermistor and both passed. Any ideas what could be causing the evaporator to ice up like this? I’m assuming it is a defrost issue but the service diagnostics did not indicate any issues unless it is a control board issue. What else can I check before ordering a new main board?