Please post make and model of the furnace. dutchmen.com has manuals for hundreds of possible appliances.
General possibilities:
Fuse in main fuse panel is blown - Fan does not start. No noises heard.
An RV furnace has a process it goes through to run. Does the furnace show any part of that process?
Set wall thermostat to a temperature above room temperature.
Fan will start and blow for a minute to clear the burner chamber.
Gas valve will open. - it makes a click when it opens.
Igniter starts sparking - it makes a series of clicks when it sparks.
Burner ignites - burner noise
Fan continues to run and burner continues until wall thermostat shuts burner "off".
Fan continues to run to cool the interior of the furnace.
If burner heat is not detected, the start process will run two more times and then shut down. Turn thermostat off and back on to reset and try again.
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Paul Bristol
Dutchman Kodiak Cub KD176RD 2018
Nissan Pathfinder 2015
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