Hello Helen, my name is George,
The FF40X is a Frost Free appliance.. The gathering of ice in the freezer could indicate a problem itself.. It could indicate any of the following:
Pull out the drawers in the freezer and check to see if there is ice/frost on the rear wall of the freezer... Also check to see/hear/feel if the fan is rotating.
Let me know what you find
Just to clarify; is yours a Freezer or a Fridge Freezer?
Is it just the two ***** *****ghts that are flashing.. with the Green not flashing?
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