2019 Jayco Jayflight 24RBS DOMETIC HEATER PROBLEMS

[Jayflight2019]

Dometic Heater DFBD20121 with Digital thermostat. The furnace blower would run for couple of minutes but would not light. I removed the furnace and changed the sail switch. When I was ireinstalling I shorted the sail rail wire to the metal frame. I checked the fuse it was good and read 13.4 volts on the heater fuse. There is only 6 volts on the positive lead at the motor. When I flip on the reset switch it drops to 1.3 volts. There is no power to the digital thermostat. I don’t have any prints to see if there is another fuse in the circuit

[Grumpy]

There may be a fuse in the thermostat. Also, sometimes there is an inline fuse in the wiring bundle in the wall behind the thermostat. I know, dumb location, but I've seen them there.

[Jayflight2019]

Thank you for your reply. Unfortunately no fuse in or behind the thermostat