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KitchenAid Refrigerator Buzz/Hum Noise (KFIV29PCMS03)


Premium Member
Jan 31, 2021
Boston, MA
Model Number
1-5 years
My refrigerator is making a very loud buzzing / humming noise - see video. I can hear it from another room and even from upstairs. The noise is not constant, usually it is totally silent but it will sometimes hum like this for 20+ minutes. The noise seems to be coming from the back of the fridge towards the top.

Any ideas on what is causing this?


  • IMG_6508 (1).MOV
    22.1 MB
Yes, I heard it.

Its possibly coming from one of the circuit board relay's in the back of the refrigerator.

Here's the parts diagram for your model: Parts for KitchenAid KFIV29PCMS03: Cabinet Parts
#1 is the power supply board.
#5 is the main control board.

Thanks for your input. I took this video to help too. To me, the sound seems a little louder when the door is open and seems to be coming from inside the fridge. Does this confirm your thought or any other idea?


  • IMG_6587.MOV
    27.9 MB
Ok, that sounds like possibly the evaporator fan motor.

Here's the FRESH FOOD(RC) Evaporator Fan Motor for your model, if needed:
W10633627 Motor-Evap

This shows you how to access it:


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