enblethen wrote:
If the fan does not start up, it would not normally be sail switch issue.
It could be thermostat or wiring to furnace, time delay relay (depends whether relay is on circuit board or separate part)
2012 rig should have later model circuit board with time delay on board.
Make and model of furnace would be helpful.
Is the rig still under a warranty? If so try get them to fix it. Warranty of furnace can be separate from rig.
As posted in original post, unit is still under warranty. Checking the book on the heater shows it also has a 2 year warranty, same as the camper, so is also under warranty. I also mentioned that is a Suburban heater, but here is the model number SF30f.
Thanks all for replies, time to start checking all those items.