Rear furnace

You have more than one furnace?

The furnace is controlled by the thermostat.
The thermostat gets its power from the furnace OFF/ON/RESET switch.
The switch gets its power from the "Appliances" fuse in the Power Center.
Check for 12 VDC at the furnace switch and that the switch is ON.

Verify your furnace control board is not wet.

If 12 VDC is available to the Furnace you either have a thermostat or furnace problem.
 
Furnace rear blower not running

Hi I have a 2018 Thor Miramar 35.3 and the rear furnace blower is not working. The front one works fine and shows the red flame on the control panel when it is running but the rear one will not run. Is there a fuse or something for the rear one.
Thanks
 
Hi I have a 2018 Thor Miramar 35.3 and the rear furnace blower is not working. The front one works fine and shows the red flame on the control panel when it is running but the rear one will not run. Is there a fuse or something for the rear one.
Thanks

You have more than one furnace?

The furnace is controlled by the thermostat.
The thermostat gets its power from the furnace OFF/ON/RESET switch.
The switch gets its power from the "Appliances" fuse in the Power Center.
Check for 12 VDC at the furnace switch and that the switch is ON.

Verify your furnace control board is not wet.

If 12 VDC is available to the Furnace you either have a thermostat or furnace problem.


Question was asked and answered and then asked again... so answered again.
 
My Tuscany has dual front and rear furnaces controlled by one thermostat as well, is the furnace not lighting or just the blower motor isn’t working?
Not uncommon for insects to make webs over the flame sensor or block the air intake .
 
I have a 2022 Thor Miramar 37.1. There is only one furnace inside the motor home with vents that go throughout it. If the vent is blocked or disconnected, no heat will go to the area. I would check at the furnace to be sure the vents are connected and go from there since you say the furnace comes on in the front. My furnace is located below the refrigerator and has a vents wood panel that can be removed to see the furnace and vent lines.

Paul
 

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