Rodo for Model Number PSS26MSTASS The freezer gets warm sometimes (every few months). The temperature reader goes up to about 10F or 11F (normal is 0F). There was frost inside the freezer (rear). The next day the freezer is at 0F and there are some frozen droplets inside (rear) the freezer. The fridge is fine. I tested the voltage at J2-3 and J2-4 for the evaporator motor (after leaving the freezer door open for 3 minutes). The voltage was zero until the compressor kicked on. Then it showed 2v, then after a few seconds it show 6v until it got to 12v or so. Will this be an evaporator motor or main board problem? Thanks
Answer Rodo, Based on the voltage reading that you are getting it sounds like the motor and control are communicating and have the proper voltage. With frost being on the rear wall would sound more likely to be a defrost issue. You can check the defrost limiter to see if it has continuity. If it does not have continuity then you would not need to change it out. You will also want to check the defrost thermistor for resistance. The resistance values should be as follows, 42.5K at 0 degrees, 14.4k at 37 degrees and 5K ohms at 77 degrees. If not within range then it would need to be replaced. If it checks good then also check the defrost heater for continuity. If no continuity then replace and if good with continuity and all other components check ok then you would need a new main control board. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More... Answered by AppliancePartsPros.com | Tuesday, March 24, 2015