RV Repair: Furnace blowing cold air!!, winnebago adventurer, gas appliances

Question
Hi, we have a 1998 Winnebago Adventurer. When we follow the instructions for the house furnace, it lights up, comes on and blows cold air.  We have tried shutting down and restarting, but after 20 minutes, still cold air. ????? User Error? Or more?  We just had it repaired last year, and it seemed to work for about a month.


Answer
Robin
There are a number of possibilities ..If the fan is worn out and does not spin fast enough it wont light, could be the ignition board has been shocked and failed...could be the spark probe assembly is dirty or damaged.
What repair was last have made to it?
Do all the rest of the gas appliances work well?
How are the Batteries? DRY??? Check the water in them.
Thom