Question about GE Monogram ZISS420NRSS 42" Built-In Side-By-Side Refrigerator (ZIS-S420NRSS, ZIS S420NRSS)

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Noise in crisper

A short rapid ratcheting noise comes from the crisper area of the fridge, sounds also like a quick bust of a machine gun, last 5 seconds

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  • dwood71 Nov 10, 2008

    Same problem from the bottom SelecTemp drawer - seems to do it regardless of the setting. With door closed, happens every 10-15 minutes. With door open, happens immediately after changing SelecTemp settings.


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There is a flap at the bottom back left of the refrigerator that opens and closes to let cold air into the area (much like the vents in your car). This flap is controlled by an electric motor to automatically open and close. The noise happens when the motor closes the flap; however, it continues to try to close the flap even after the flap is closed. There must be a ratchet on the motor and that is where you are getting the ratchet noise. I don't know why the electric motor continues to try to close the flap after it is closed. It could be a limit switch that has gone bad and the motor doesn't know the flap is closed. It appears that this electric motor/flap is a separate assembly in itself and I may just go order a new part to replace it. That is as far as I have been able to solve this problem.

Posted on Jan 10, 2009

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Initially, would suspect the evaporator fan blades hitting something or a misaligned vent. Pls post back the make & model.

Other areas to check would be:
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Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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