Dometic AC
Hello. I have a Lacrosse 2012 travel trailer and am having an issue with the Dometic AC unit. When I try to turn on the thermostat, all I get is the error code E1. The AC or heat will not come on at a...
Forum Discussion
E1 means that the Tstat does not communicate with the roof AC control board. There are only 3 wires on the tstat. You need to verify the connects at the roof AC control board and obviously at the tstat which you did when you replaced it. The BATTERY has nothing to do with your problem. Is that why you replaced it??? Doug
