Steve for Model Number PSC23MGNABB Morning, on the fresh food side, with the refrigerator running, a grinding\squealing noise can be heard at times that will stop when the refrigerator door is opened and start again when the door is closed. I think there is a fan in there somewhere. At times with the refrigerator running, you can open the same door and hear nothing at all. The refrigerator seems to be running longer too. Possibilities?
Answer Steve, there is a fan motor in the damper assembly WR49X10091 that could be causing this issue. When a grinding noise occurs with a fan, it is usually due to an obstruction. The damper will need to be inspected for any frost. The freezer fan motor would need to be inspected as well to ensure that it is not blocked up by ice. If it is blocked up by ice, the defrost thermostat WR50X10068 will need to be tested for continuity (it should have continuity). The defrost heater WR51X10055 would also need to be tested for resistance and it should read 21O. If these check good, then the freezer, refrigerator, and evaporator thermistors WR55X10025 would need to be tested for resistance to ensure they are operating properly. If everything tested good and there is a defrost issue, then the main control WR55X10942C would be the likely failure. Read More... Answered by AppliancePartsPros.com | Tuesday, December 3, 2019