In need of furnace help!!!! Anyone?????

Maybe let the burner on the stove run for a few to purge air from the lines.

How's your battery?

Furnace needs 12 volts to ignite make sure batteries are good and battery disconnect switch hasn't be bumped,

Op here.Plugged in to shore power. Don't think it's a battery problem. I can hear the furnace fan, but blowing cold air. Thanks for the Christmas Eve help appreciate it.

2oldman wrote:
How's your battery?

how in the ell would the fans be blowing if the batterys were dead or the 12V switch is off never mind interior lites etc? so one has to realize the batt is ok if one knows how these systems work PLUS hes plugged into shore power

why do these things happen? Here's my guess: Your trying to keep warm. Your running 120 volt heaters, maybe robbing the battery charger in the converter of the amps it needs to keep the battery up. The sail switch dropped slightly signaling the board to shut off the propane to the furnace. The fan will continue to blow cold air until it is shut off at the thermostat. As suggested above, get a charge on the battery any way you can, hopefully 13.4 volts, the fan will spin faster and keep that sail switch up to allow the flow of propane.

Reducing the 12 volt load, such as lights and water pump etc will help in getting a proper voltage to your furnace fan, (until your fully charged up again)

Just a guess, good luck and Merry Christmas

Try turning the furnace off and on so it might recycle/reset the ignition process..

cross country wrote:
why do these things happen? Here's my guess: Your trying to keep warm. Your running 120 volt heaters, maybe robbing the battery charger in the converter of the amps it needs to keep the battery up. The sail switch dropped slightly signaling the board to shut off the propane to the furnace. The fan will continue to blow cold air until it is shut off at the thermostat. As suggested above, get a charge on the battery any way you can, hopefully 13.4 volts, the fan will spin faster and keep that sail switch up to allow the flow of propane.

Reducing the 12 volt load, such as lights and water pump etc will help in getting a proper voltage to your furnace fan, (until your fully charged up again)

Just a guess, good luck and Merry Christmas

HOW??? would 120V heaters rob the battery charger? where do u people dream these ideas up??
But what strikes me odd is how both furnaces have quit?

Am I to understand that the gas furnace worked fine until you disconnected the aux tank and now it will not work on the onboard tank?

You don't mention that you hear the burner light. Your fan should come on for a very short time, then the burner should ignite. Is you igniter misaligned. Or -- do you hear your burner attempt to light 3 times while the fan is blowing cold air? When ours did the try 3x and not light and was going into lockout, we had to replace the circuit board. If you could explain the above, maybe someone with more technical knowledge could walk you thru the problem.