Most times a bad 4 or 6 button will correct problem, if there are no shorts. I have a good supply of the switch pads. 
I do not have new DECC panels. Only used test units 
MGA0011908   Processor,Electronic,DECC,AllModels,RequiresProgramming   10    3    311.5    $15.00
instock 
MGA0011916   SwitchPanel,6Button,00,01,02MY,TopPosition1To6,NotLabeled,w/Bezel   15    8    82.42    $15.00
 MGA0011917   SwitchPanel,6Button,02Only,Bottom#'s7-12,w/Lables,w/Jumper           82.42    $15.00 
Capt Rick