We have a 2013 Bounder 35K.  Currently on the thermostat we get a reading and have control of zone 2 (the heat pump and ac).  In zone 1 we get a reading and control of ac but when we switch to the heat mode (propane furnace) we get no readings or control.  I know the propane is on as the stove top and refrigerator both are working.  Also, the propane portion of the water heater does not Ingnite but the electrical works fine.  I have a full tank of propane.

The furnace is an Atwood model 8535-IV DCLP.  The water heater model is GC10A-4E.

I have checked all the breakers and fuses I'm aware of and they are all fine., I also used the reset switch on the furnace.  On one hand it seems I have a problem with the propane feed and on the other I have a problem with the thermostat.

Any thoughts?

Thanks, Bob