Propane Furnace Stopped Working, No Fan, No Heat

You got the fan to run so the T-Stat must be getting power?

But nothing works as in the OP. Only trouble I had with that was the slider setting to change the temperature the furnace comes on and shuts off got wonky. I had to keep setting it higher and higher to get the furnace to come on. You get a click. Had to get a new same type thermostat(Dometic)

Yours is a different brand, but the thing remains that they are sort of tricky.