Furnace Fan runs non stop

[KENSWS6]

Guy's I am new to the forum but I been camping with my Jayco 2013 32 tech and the problem I am having is the fan on the furnace continues to run non stop but the thermostat is working when I put the air conditioning on its the fan on the furnace will not stop running. First I think the thermostat is working because the air is working fine, I even disconnected the fan but then it shuts my air off if I do that. What could it be and I tried pulling the fuse but it kills my fridge so I can't do that. Any help would be great guys.

[Grumpy]

Sounds like a bad thermal switch in the furnace or a bad circuit board.

[CAG]

Do you have an “auto” setting on the thermostat for the fan? If so move it off of that setting. Without knowing which thermostat you have I can’t guess what it may have for settings but on one brand auto will run none stop.

[KENSWS6]

It's on auto and still runs. Thanks for getting back so soon.

[CAG]

Yes, that may be the problem. See what other setting are available, manual?

[CAG]

I’m working off of my iPad so am at a disadvantage for the internet. Whatever brand the thermostat is (Dometic?) go on line and search that brand runs nonstop. You will probably get a long list of people with the same problem and it will tell you which setting to change it to.