Thermostat issue.

[calsteve]

Hi.
Have a 2011 coleman ct320BS. The thermostat has quit working. The display does't come on. Fuses are good in the fuse box. I don't measure any voltage at the in coming wires.
Lights, other 12v items work.
Just installed a new house battery,
Any ideas or suggestions, would be appreciated.

Steve

[Old-Biscuit]

12VDC+ comes from the Furnace to the Thermostat...then when Thermostat closes it allows that 12VDC_ to go back to furnace circuit board

Furnace has a On/Off CB Switch that gets the 12VDC from fused source...then it sends the DC to furnace fan and to the thermostat
Sounds like it is 'tripped' ---manual push button reset
It is on the furnace