DOMETIC Furnace Problem

[M & M]

Dometic DF Series Furnace;
After working very well for several months, it stop blowing warm air, the burner ignites I can feel the heat by the exterior access panel, inside, the blower runs and only cold air come out.
I read about the Sail Switch, it seems when the problem is the switch, the Blower should stop running, is not happening in this case, the Blower goes on and on.
Can anybody help?
Mario

[Eggscape]

It has me puzzled...maybe the outside air intake is blocked with mud wasp stuff or something.

[NEWYORKHILLBILLY]

I have seen the fan still run with a bad sail switch. I would still be looking at the sail switch as it is such a common problem. when the thermometer calls for heat. The unit will light it then checks to make sure it has correct fan speed and exhaust. If one of these fail it will turn off burner and then just the fan will run blowing cold air. I would order a sail switch and try it. The worst that would happen as you end up with a spare sail switch. Personalty I think anyone with a escape should have a extra sail switch with them anyway. This is assuming your comfortable putting one in. If not you can take it to a domictic service center and have it repaired not sure if your still under warranty .

[M & M]

Originally Posted by NEWYORKHILLBILLY

I have seen the fan still run with a bad sail switch. I would still be looking at the sail switch as it is such a common problem. when the thermometer calls for heat. The unit will light it then checks to make sure it has correct fan speed and exhaust. If one of these fail it will turn off burner and then just the fan will run blowing cold air. I would order a sail switch and try it. The worst that would happen as you end up with a spare sail switch. Personalty I think anyone with a escape should have a extra sail switch with them anyway. This is assuming your comfortable putting one in. If not you can take it to a domictic service center and have it repaired not sure if your still under warranty .

Thank you for your replied.
I'll call Dometic's customer service and requested a Sail Switch sent to me, I'm under warranty, I saw the video how to replaced it, an easy task.
Mario