| The tech specs mention the compressor, thermistor, evaporator fan, thermostat, evaporator heater, etc. but they do not mention a timer. They do mention the control board, and refer me to the control board section.
When I ran through the service tests, everything seemed to pass. However, I don't think I understood how things work as well as I do now. I just ran the "defrost thermostat & defrost circuit test", and the heater element heated right up and started to melt the frost. Tomorrow after work I'll go through the other tests and see if I can eliminate everything other than the culprit.
If it has something to do with an adaptive defrost timer, does that mean I'll have to replace the whole control board? |