Is the heat pump coming on or is it just the fan running? If it's the fan then you need to move the fan setting to auto when you run the furnace, otherwise the AC fan will come on along with the furnance.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.