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Replacement parts for General Electric GBS18HBRAWW Refrigerator | AppliancePartsPros.com

Very strange.
I am assuming everything else is normal and by freezing you mean that ice/frost builds up on the fan to the point where it stops rotating.

I would suspect a bad door seal is letting in too much warm moist air though I would have thought you would have also noticed an accumulation of it on the items in the freezer.

Take a dollar bill or a strip of paper. Place it between the door seal and the frame and then try to pull it out. If you can remove it with no resistance you have a seal leak. Work your way around both the freezer and fresh food doors.

Where on the fan is the ice accumulating?

Hopefully someone who has seen this on this model will jump in as it seems very strange to me.

I have never seen this so am stumped as to the cause.

I would have thought that it would take a long time to saturate open cell stryrofoam but that depends on the quality of the styrofoam they used.

Perhaps give GE a call, although in my experience they never seem to have heard of a problem on another unit when you ask them. Seems all problems with GE's are just random.

There is a GE tech who hangs out here but I cannot remember his logon with a little luck he will see this and reply. Also perhaps someone else is familiar with this.

I have seen where ice builds up around the drain hole and plugs it. Often it is recommended that a bare piece of 14 gauge or lager wire be wrapped around the heater once or twice and run down the hole a inch or two. Then when the defrost comes on it also melts the ice accumulation. Your heater is the glass type so I am not sure how wrapping a wire around it would effect it. Could cause a cold spot which would then crack the glass.

Sorry I could not be more helpful !!