I have issues with defrost, The heater has resistance and the t-stat was closed when I checked while the coils was frozen over, I assume this unit does not have a traditional defrost timer and is incorporated the the main control board?
What else can the problem be?
The unit does use the main control board to go through the defrost. Before you replace the board though, this unit also incorporates a defrost thermistor. The thermistor sits at the top of the evaporator coil and is a white bullet looking piece with 2 white wires going into it. The resistance of the thermistor at 0 degrees should be 42.2K ohms of resistance. If not within 10 percent of this resistance then the thermistor is bad and would need to be replaced.
My freezer orange glow for the defrost is not there any more and its freezing up and fridges not staying cold . I've been manually dethawing it I Need to try n fix it I NEED HELP.
Answer Hello Jen. It sounds like you may have a defrost problem with the unit. Check and see if there is any frost build up on the back wall of the freezer. If so, you will need to test the defrost heater and the defrost thermostat. They should read closed for continuity when cold. You can test this with a multi-meter TJMA-DMT3. I will include a link at the end to assist you how to use the multi-meter if needed. If both parts are good, you will need to replace the defrost timer. Once the problem is repaired, you will need to thaw out the ice on the coils before the unit will operate properly. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html