Xin for Model Number RT18BKXKQ00 Hi, My refrig had deforst system breakdown. One repairman replaced the heater and thermostat. It did not works and ice built up again in 3 weeks. Now I think defrost timer need to be replaced, it looks like a circuit board, I am wondering if I could test it before replacing it. Also how to access it? looks like just 2 screws holding the enclosure. Is the timer circuit board a plug and play? need any wire? Before I replace the defrost timer, Could I check the defrost heater and thermostat? Could I do it by checking continuity? Thanks!
Answer Hello xin. Do a continuity check on the heater and the thermostat. If good, replace the board in the unit. Read More... Answered by AppliancePartsPros.com | Friday, May 24, 2013