No power at T-Stat
Went out to the 5'er to load up fridge for trip tomorrow. I noticed one of the LED lights in my breaker panel was illuminated. Removed 15amp furnace fuse and installed a new one, it immediately popped the fuse. The camper has been hooked to 15amp shore power for almost 2 weeks since last trip. Everything worked fine two weeks ago. Now no power to the thermostat. I have power to the t-stat in the bedroom, but it does not control the furnace. Battery is fully charged and everything else in the camper appears to be working on battery power. Lights, slides, etc. Battery shows 12.35V.
Question, does the 12V that comes into the t-stat come from the main a/c in the living room or from some other source? I am familiar with residential HVAC but not RV furnace. Is there a transformer in the A/C to step it down to 12v when you are hooked to shore power? Any suggestions on how to check and see why I'm getting no power to t-stat?
John & April & "Scout"
Nights Camped 2013-(44)
Nights Camped 2015-(47)