5th wheel furnace

[GaleLynn1]

We have a Keystone Montana Legacy 5th wheel, 2016. Whenever I turn on the furnace (which works OK) cold air begins to flow from the ceiling vents which are supposed to be for the A/C. How do I fix this? We are new Keystone owners and I could not find any help on their webpage. Thanks, Gale

[chuckster57]

Welcome to the forum

Find the thermostat and set the FAN to AUTO.

[xrated]

It almost sounds like you have a heat pump type A/C unit. I don't know if your trailer is of the era where they came with optional heat pump units or not, but you might want to look into that possibility.

[jasin1]

If it’s low velocity air your feeling then it’s probably from the furnace ductwork creating airflow in the rv…your getting a draft through the ductwork from the return through to the supply registers …it’s lightly pressurizing the ac ductwork.

You could put a cover over the ac return or block it off inside the access plate…just remember to remove before you try and run the ac…I’d put a taped note next to the thermostat…

If it’s the regular velocity air flow you feel then I agree with the others ..the fan is set to “on”…..although the fan would run continuously in this mode even after the furnace cycled off

[gearhead]

Originally Posted by chuckster57

Welcome to the forum

Find the thermostat and set the FAN to AUTO.

^This.
That was my first question on this forum.

[spicercars]

Originally Posted by chuckster57

Welcome to the forum

Find the thermostat and set the FAN to AUTO.

Yes check the thermostat. Welcome from northern MN.

[gearhead]

Might also see if the thermostat has AUX. I think that was where mine wanted to be for the furnace.