07IDCLASSIC wrote:
...Have power to the black wire running to a gray box but I'm betting that is for the 120 plug in not too far away....
...
The grey box w/black cord and romex SHOULD be 110v circut-not part of heater or any other 12v circut. Couldnt help but note the use of cover typicaly used on exterior raintight box, odd, thats an expensive cover for a junction box? Common on an A/F?
Dont know what a 'ticker' is but there should be 12v at the (correction) red wire connection that goes INTO heater, (blue wires are t-stat). If not then I would verify 12v out at fuse panel. I would start out assuming simplest-no power getting to heater.
Second would be thermostat or wiring to it. I would as suggested remove wires from t stat and tie together. If fan doesnt come on imediatedly it will as soon as (if) a bad connection/lack of power somewhere else is found. IE the mentioned plug if you have one, between slide and camper, could be obvious source of fault.
If 12v out at panle, I would pull wire loose at panle & check continuity between that end of the red wire and end of wire at heater. Again mentioned was a plug.
If power at red wire to heater, and wires
Disconnected from t-stat and tied together, last thing I'd check is jumping t-stat wires at heater to verify no break in leads to t-stat. If theres power and t-stat wires are connected then its into the heater itself.
