My defrost cycle isn't working. I checked the defrost heater element and the defrost thermostat and they both have continuity. Is the main control board the only other possibility or are there other things I need to check? Thanks, John
Answer Hello John,
The electronically controlled defrost system by GE has 4 components. They include the defrost heater, the defrost thermostat, the evaporator thermistor, and the electronic control board. If you have replaced the heater and thermostat, the next obvious part to replace is the evaporator thermistor WR55X10025. If these do not correct the issue, the main control board WR55X10942 is the only part left. Since GE didn't provide a way to force the unit into defrost, all that can be done is test the parts and replace the ones further from tolerance.
The freezer works fine but the fridge is too warm. I replaced the motherboard, all 3 thermistors, the defrost thermostat, the relay, and the evaporator fan. Still no luck. I tested the defrost heater with my Ohm meter and there seems to be continuity (reads 1 ohm). Both two fans run when the fridge starts. When the fridge starts, few seconds after, there seems to be a couple of knocks somewhere in the freezer section, barely noticable.
The freezer coils do have snow/frost on them but not too much. I'm not sure what else I can replace, other than the heating element or the Board Asm Encoder (WR55X10625). I have two main motherboards, both OEM and one is brand new. Still no luck. Please help. Thank you!
Answer Hello George46. If there is no frost pattern on all the coils in the freezer, you have an issue with the sealed system and will need an HVAC tech to repair the unit.