rebntx Posted July 29, 2015 Report Share Posted July 29, 2015 Last month, among other repairs, I had a new thermostat installed. Now it won't work. The fan switch will turn on the fan, but it will not run the a/c nor the furnace. I checked for a vapor lock. I checked the fuse in the thermostat. It ran the a/c and the furnace fine for a week or two, then yesterday it quit running a/c and furnace. Any ideas other than getting a new thermostat? Link to comment Share on other sites More sharing options...
SCClockDr Posted July 29, 2015 Report Share Posted July 29, 2015 Knowing the type of thermostat you have would help us to provide accurate suggestions, a picture would be even better! In some models the switches are quite poor in quality. I occasionally need to fiddle with ours to get things working properly but so far no out n out failure. Link to comment Share on other sites More sharing options...
porky69 Posted July 29, 2015 Report Share Posted July 29, 2015 Check all of the wire connections. Wires used are fairly small gauge wire and could have come loose. Link to comment Share on other sites More sharing options...
LFDR3116 Posted July 30, 2015 Report Share Posted July 30, 2015 Good batteries? Pat DeJong Link to comment Share on other sites More sharing options...
Kirk W Posted July 30, 2015 Report Share Posted July 30, 2015 It might help to know what a/c and thermostat you have. If you want it, I have an extra Dometic, like this which someone could have for $20, including shipping since I have no use for it now. If you visit the Dometic Customer Support website you can find manuals for their products if you do not have one. Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
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