Hello Parts Pro - I have an annoying hum coming from my refrigerator P/N kscs25inss00. I can't figure out where exactly it's coming from. I would think its either the evaporator fan, condenser fan, or compressor. It cycles on and off. I can hear the fans running but I'm just not sure of the origin of the hum. When the hum stops, I can still hear the fans (well at least 1 of the 2, but it's faint). Do you have any tips to help diagnose the problem. Thanks in advance. Kind regards, Foster
Answer Foster, Your refrigerator is equipped with variable speed evaporator fan W10255195 and a compressor W10276644 and a single speed condenser fan motor W10124096 The condenser fan motor runs when the compressor runs, in order to cool the fluid and compressor. If the compressor is "stuck" in a low or medium speed, it may "hum" but you should also have an issue with the cooling of the freezer and refrigerator compartments. The evaporator fan is the more common component for a noise, so you may want to open the freezer door, remove the articles and shelves and listen for the noise at a level of 1/3 down the back wall of the freezer compartment. The tech data / information sheet with the test program is usually attached to the front frame, behind the kick plate lower grille panel. you can program the test mode and test each individual component for operation and noise, if it hasn't been removed or lost.