I think that the model you refer to is a frost free one, in which case find somewhere else to keep your frozen food for at least 24 hours then unplug unit and leave the doors open at room temperature and the problem should be cured, if it happens again within 6 weeks then there is a defrost fault with the core, now I know what you are thinking, either "this is supposed to be frost free" or "I cant see any ice" but trust me I work on these all the time. Steve.
Powerhouse Steve., November 2005