2005 Safari/heater problem

[billiards]

we have a sometimes no heat problem w/our 2005 safari 25 footer.....it has a lever style temp. control on themostat w/ top lever switch for heater fan.....about 50 % of the times when flipping the fan lever the fan will not come on/ and the burner does not come on.

fresh supply l.p. and dual fully charged batteries....any ideas appreciated. thanks a million...jack

[Tim A.]

One possibility is that the pressure regulator on your tanks is not functioning properly, so that the gas pressure to your furnace is low. Another possibility is that the ignitor board is malfunctioning.

Tim