Loud Freezer Noise? Use defrost heater in service mode. Whirlpool.
Channel: Paul S
Date: 2022-04-03

Problem: Loud fan noise coming from freezer.

Solution: Use built-in heat element to defrost the ice that is hitting the fan in the freezer.

Whirlpool refrigerator. Probably applies to other brands built like this. Frigidaire, GE (General Electric), Kenmore
This model: WRT318FZDM01

(!) While defrosting a lot of water will fall into the drip pan on the back bottom outside of the frig. There will be a cardboard flap to remove (nut driver needed) to access the drip tray. Use towels to absorb this water frequently during defrost or you will make a mess!

Root Causes:
If conditions are not right the ice may have built over time and defrosting it will help.
If the loud fan noise / Ice comes back in a couple weeks, then your control board probably needs to be replaced for $300. (It is no longer running the scheduled defrost each night)

The control board in in the top of the frig underneath the box with the buttons for changing the frig cold level. It looked easy to replace, but I didn't know what and I paid a service company.