Your user interface is broken, you have a shorted key in the pad somewhere, you will need to replace it with part number(NNN) NNN-NNNN You can order the parts you need from the following places, http://www.apwagner.com/, http://www.repairclinic.com/, http://www.searspartsdirect.com/, or http://www.partstore.com/, all of these places offer easy returns and reasonable prices for their items.
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