There isn't much repair that can be done with those. I suspect it is time for a replacement control panel. I think it comes as a unit, rather than a button pad + board, but not sure.
Best I can think of is to take it apart, clean everything (especially contacts and wire connections) and re-try, but I would not be optimistic.
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Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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