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Yes. It's applied at the factory for protecting the touch panel. Sometimes it's not removed at installation, and will caused the problem you described. The problem is most likely with the control board to which the touchpad is connected. I suggest that you contact a company authorized service company to get the part number and price for a replacement control board. Another good source for information is 'appliancepartspros.com'. Their phone number is(NNN) NNN-NNNN
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They're fairly easy to replace. The question is whether or not you'd feel comfortable trying to do the job. The access space is confined, and the board is rather fragile. With all the wires that connect to the board, there's the potential for error. I suggest that you call a service person, and ask for a phone estimate for the job. It's a common job for us who repair them regularly. It might be worth it to have it done by a professional.