Loud shreaking sound coming from Kenmore Frost Freezer.
I have a Kenmore frostless freezer, model 2539260210. It seems to be cooling fine, however there is an intermittent loud shreaking sound coming from the upper part of the fridge behind the back panel. Sounds like a motor trying to start and can't.
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Re: Loud shreaking sound coming from Kenmore Frost...
The fan behind the molding is hitting some ice build up and causing the sound. Sounds like the timer for the defrost isn't working. Try to turn off the unit for few hours or take off the molding in the freezer compartment and remove the ice build up with hair dryer.
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All the cooling for both sections takes place in the freezer behind the back wall. A fan back there distributes the cold air throughout the freezer and fresh food section. Every 8 - 10 hours a heater comes on for about 20 minutes to eliminate the frost from the evaporator coils back there. If this defrost cycle fails the frost will build up to a point of no air flow so the fresh food side and most of the freezer start to warm up.
The best way to take care of this is to turn it off and unload the freezer, take the shelves out and the screws holding the back panel inside the freezer out. Remove the back panel from the freezer. Use hot water and a hair dryer to unthaw the ice and frost, you will need lots of towels as the melting will bring lots of water on to the floor. Once the frost is gone you will need to install this part WR51X443. The picture below shows it. The kit contains new heaters and thermostat.
If you live in a humid environment its the water vapor in the air that is turning to frost in your freezer. Every time you open the door you are exchanging the cold dry air in your freezer for the humid air on the outside, and when you shut the door closed its this humid air that turns to frost inside the freezer. If its building up frost faster than normal you might have a door gasket that is leaking the cold air outside thus letting the humid air in, which is turning to frost. Check that your door is aligned properly and that the gasket is secure on the freezer door.
One reason for the fan running is that it is trying to distribute the air in the compartment. Look at the very rear of the freezer on the bottom and see if the little vents, which allow water to disperse, are not filled with frozen ice. If so, turn off the fridge (unplug it) and use a hair dryer to melt that ice until it is all gone. That will probably fill the condensation pan under the unit and you'll need to empty it.