Had the same issue with my 2015 27K that I just traded in Had a mobile tec come out who got on with Lippert tec support ended up replacing the communication cable from the control box to the key pad and the main control box which is located in the battery compartment top right hand side.
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Don & Liz B.
Four Winds 22B
Sunseeker 2800QSF GTS (Loss to hurricane Ian)
Windsport 27K
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