My 95 coach has the original Atwood heaters. Both have been working well. Today, my front one started behaving strangely. When the thermostat called for heat, the fan would start as usual and the burn...
If this happened and you haven't used the furnace for while (weeks ) I'd bet it was air in the propane line. Mine will do the same thing it will try and light and I can hear the flame for a few seconds. I will do it 3 times and then just the fan will run.Have to turn the thermostat off and on again to restart 3 tries. Have to keep doing this till the air is out of the lines.