[daveinaz]

Maybe this is normal? I discovered that if I unplug from shore power with the air conditioner switch set to ON at the thermostat (unit not blowing because it the temp is below the set point) that the furnace blower comes on.

I only discovered this because after we broke camp, when we got to the dump station, from the outside at the convenience center, it sounded like a fan running inside the furnace. I went inside, flipped the switched to OFF on the thermostat and the blower turned off.

Since the furnace can run off DC power, is this normal operation? When the thermostat lost AC power it looked to DC and turned on the furnace blower?