winter1373
Member
Hi All im new here. First post. I have cold air coming out of my heat vents and the furnace is off. Any Ideas?
Michael
2011 landmark Grand Canyon
Michael
2011 landmark Grand Canyon
Cold air
- Thread starter winter1373
- Start date
danemayer
Well-known member
Hi winter1373,
A couple of questions: When you say the furnace is OFF, do you mean that the thermostat is not set to HEAT or COOL but is OFF? Also, is the furnace blower running, pushing cold air through the floor vents, or do you mean you can feel a little cold breeze?
A couple of questions: When you say the furnace is OFF, do you mean that the thermostat is not set to HEAT or COOL but is OFF? Also, is the furnace blower running, pushing cold air through the floor vents, or do you mean you can feel a little cold breeze?
winter1373
Member
Its a cold breeze. No fan running furnace is set to off.
danemayer
Well-known member
You may have cold wind blowing in through the furnace air intake/exhaust vents, into the combustion chamber and out the ducts.
Or one of the ducts is disconnected and cold air in the basement is coming through the duct.
If the cold air is coming from the furnace air return, you should take a look under the coach and seal up as many of the openings as possible.
winter1373
Member
Will do thanks
RoadJunkie
Well-known member
Is cold air coming from a single vent or all vents? Is the cold air constant or comes and goes, perhaps with a wind gust? Is there a strong enough wind to suspect air is from a source external to the coach? There will be natural convection movement of air within the vents. Try to isolate potential air sources and narrow the search.
Claydodger
LISA CLAY
I have a 2020 big country 3902fl. We also get cold air out of the return air vent from the furnace when it is not running. The vent is located in the steps that go up to the living area. This keeps our kitchen area cold and breezy. Can anyone recommend where to look to see if something has come undone, hopefully without undoing anything underneath? We have some really cold tempatures heading our way this weekend in Texas and just want to keep as much cold air out as possible. We have put magnetic vent covers over it when the furnance is not on but don't want to forget to remove them at night and burn something up. We also use space heaters during the day while at home.
danemayer
Well-known member
The behind the air return is an open space with wires, plumbing, furnace, and probably the water heater and water pump, along with some other devices. The furnace has a small duct that goes into the underbelly. So one possible source of cold air follows the path of that duct. There could be others. If you take down the rear wall of the pass through basement storage, you may be able to assess where the cold air originates.
Claydodger
LISA CLAY
Routemaster
Well-known member
I have the same problem at the stair case vent.
