Jw for Model Number KRFC300ess03 The OEM damper began making a grinding noise after about 3 months of owning it, so I replaced it with this new genuine damper. About 3 months later, the motor started making the same grinding noise again when opening/closing. Is this just a coincidence that I got 2 grinding dampers or is there a larger problem with the motors in these damper controls? Is there anything that could be causing it?
Answer Hello JW, The only thing that can cause the same failure would be a frost build-up or an incorrect power supply from the mainboard. I would first check for an air leak which would be indicated by a frost buildup around the leak. The door seal can be checked with a dollar bill by closing the door on it and verifying there is some resistance on the bill when pulling it out. Any place around the door seal that does not offer resistance should be corrected to eliminate the air leak. When this is done you can verify 120Vac to the motor from pin CN2-9 to ground. If good, you can call us at 1-877-477-7278 for a part warranty replacement of the part. Be sure to have the units' model and serial number when calling. Read More... Answered by AppliancePartsPros.com | Thursday, March 19, 2020