Kumar S for Model Number MFF2055YEM00 Have this refrigerator for less than 6 months, but out of the US. I have just replaced the board before it has a defrost problem. Not going into defrost cycle. I THOUGH IT WAS THE MAIN BOARD, BUT SINCE INSTALLING THE NEW ONE I HAS STILL ENCOUNTERING THE PROBLEM WITH THE FREEZER FREEZING UP. How to I check the defrost thermistor to determine if it is good? I would like to buy one to replace it. What else could be causing the refrigerator not to go into the defrost mode. Thanks Kumar
Answer Kumar, You would want to do a continuity test on the defrost heater and the defrost thermostat. These would be the only other components that will keep the unit from going into defrost. If there is no continuity on the heater or the thermostat and if there is not continuity on one of the parts then just replace that part. Read More... Answered by AppliancePartsPros.com | Thursday, December 12, 2013