On 2/2012 I replaced the defrost heating element PN AP3183311 and the refrigerator/freezer worked fine until around June 2012. I removed the heating element and it looked fine I put 110volts to the element and it heated very well on the work bench. I put it back in and still 2 weeks later I'm defrosting the unit. I replaced the mother board and the defrost limiting stat in August and the unit is still freezing up and having to be defrosted manually every two weeks. Any suggestions please? The wiring connections all look good. Is there a way to manually trip the unit into a defrost to see if the element is getting power and working properly?
ANSWER Hello Daniel,
The most likely suspect in this case is the defrost thermostat WR50X10068. The next most likely suspect would be the evaporator thermistor WR55X10025, the freezer compartment thermistor WR55X10025, and the mother board WR55X10942. This design cannot be forced into a defrost mode. The manufacturer tells its' authorized servicers to jump a couple of terminals at the mother board to allow voltage to be passed across the defrost heater. This is a major hassle since the connectors on the mother board are really, really small. You have to have special jumper wires to do this. For this reason, technicians go directly into the freezer compartment and test the components with an ohm meter. Let us know if we can assist you further.
Answered by AppliancePartsPros.com | Friday, September 21, 2012