heater problems

[ryanjt5@cox.net]

I am experiencing a problem with my propane heater in the pop-up.   Initially, it turns on and fires up with a good blast of heat.  After several minutes, the "heat" stops but the blower fan runs continuously.  The heat never comes back on, unless I turn off the thermostat and wait a minute, then start it up again.  The same thing happens, a blast of heat for a few minutes, then, no heat, only a continuous blower fan running.  Any suggestions?

[tknick]

Although I do not have a furnace in my PUP, I did have one in my TT.  I wouldn't be surprised if you have air in the lines. If your flame goes out, it may not relight as a safety feature to prevent the ignitor lighting a huge pocket of gas causing an explosion.  When you reset the thermostat, you bypass that feature and the ignitor fires again.  If is probably firing long enough to get past the current air bubble in the line to allow the furnace to light.  then, voila, another bubble, furnace out, repeat.  that's just a guess.  if that is the case, light the inside stove first.  allow it to run for a while to purge any residual gas in the line.  then, light the other appliances.  the fridge, hot water heater and furnace have much smaller orifices than the furnace so they can take a while to purge any air that accumulates in the lines.

good luck
travis