Another question about roof-top AC's

Your problem is this- you have a obsolete Dometic wall tstat system (obsolete since 1996/7). If you pull the tstat, you will see a flat ribbon cable on the back of the tstat that has about 10 wires in it. You will also see the same type cable at the AC unit in the control area. The ONLY way to make that old system work (if tstat was bad) was they had an upgrade wire kit for the OLD 4 button Wall CCC tstat that also was obsolete after 2001/2). The good news is, they ran a regulat tstat type 6 to 8 wire harness from the Roof AC to the wall tstat. So, you can replace the control assbly at the roof AC and then use any aftermarket tstat for home you want, or you can use the electronic type wall tstat from Dometic that uses the standard home tstat wire harness. Doug

PS. Home tstats are 24 volt but they will work on 12 volt.