I know its sounds simple but do you have your propane on? Is the tank empty? Do you have air in the line? Does your model have a propane stove? If not it might take 15 minutes or so for the furnace to purge out. I bleed mine (by turning on the stove) for one or two minutes to make the stove, Frig or furnace will work.
Also I put a home made bug screen on mine last summer (worked great for bugs). Well it was blocking the inbound air flow too much and would not work until I removed. So the fan came on, Furnace fired up but no heat. You could hear the furnace cycle on and off outside and the exhaust was warm (but not very hot like normal).
Works fine now (without bug screen)
So check for any bugs or blockage outside in the exhaust or inlet areas.
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2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
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