Atwood Hydro Flame furnace shoots cold air then shuts off

StarcraftNick wrote:
I have already fired up the burners and let them run for about a minute. How long do you suggest I let them run for? thanks.

In our old motorhome we found that if there was air in the line it would do this, even in the middle of the night. It just can't maintain a good flame but, the fan would run and blow cold air, which sucks. Once all the air was out of the lines it worked perfectly. I would run the water heater and stove for a couple of minutes to get the air out of the lines.