Furnace help needed

[Shbussey3]

I own a 2008 Jayco Desginer Series 36rlts and my furnace blows but is not ignighting therefore it's blowing cold air. I have checked the fuse and it doesn't appear to be blown. Can someone please help and tell me where I locate the furnace to try to find out what's going on? It's really cold without heat!! Thanks!

[Sundancer330]

Are you trying to use a propane furnace or heat pump on the a/c

[Magnolia Tom]

Have to ask but are your propane tanks full?


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[hoppers4]

I just had the same problem on my Atwood Hydroflame furnace. The brief manual that came with my rig had a small troubleshooting section. Following that, I took a look at the furnace circuit board and the single blink emitted by the led indicated a sail switch problem. I troubleshot the switch with a meter and determined the switch itself had failed. If I bypassed the switch with a jumper, the furnace worked as it should. I just a ordered a new sail switch 2 days ago and will be replacing it soon.

[Shbussey3]

Yes, we have propane.

[Shbussey3]

Propane furnace

[Shbussey3]

I have lost my owners book and having trouble locating where to find the furnace circuit board in this rv.

[Ultratravler]

What does the sail switch do? Thanks.

Dave

[Shbussey3]

I have lost my owners Book and am having trouble finding the furnace circuit board to try to determine what's going on. I'm new to this and really clueless as to where to look.

[DanNJanice]

Originally Posted by Ultratravler

What does the sail switch do? Thanks.

Dave

The sail switch activates when fan runs. The burner will not light until the furnace is sure that the fan is running.

[DanNJanice]

Originally Posted by Shbussey3

I have lost my owners Book and am having trouble finding the furnace circuit board to try to determine what's going on. I'm new to this and really clueless as to where to look.

Here is a link with many owners and service manuals. Try to find the manufacturer/model of your furnace and then you should be able to download a manual.
Service Documents and Manuals

[DanNJanice]

Originally Posted by Shbussey3

I own a 2008 Jayco Desginer Series 36rlts and my furnace blows but is not ignighting therefore it's blowing cold air. I have checked the fuse and it doesn't appear to be blown. Can someone please help and tell me where I locate the furnace to try to find out what's going on? It's really cold without heat!! Thanks!

Sometimes if a furnace does not light correctly the first time, it will go into what is called "lockout". Once that happens the furnace will not restart until it is turned off and then back on.
The first thing to do is completely turn off the thermostat. On some, you turn the temp all the way down, that will activate the off switch. On others, there will be an actual off switch on the thermostat.
After you do this wait 5 minutes of so, then turn it back on. Also, confirm that you have a good charge in the battery (or are plugged in) and that you can light the burners on the stove.

[Shbussey3]

I don't know where to find that in this rv. This is all new to me.