Pixel_Princess
New Member
Hello all,
So I have a 2024 3915tb and I started having some issues recently with the heating. I usually run the propane furnace since it's been so cold but recently tried the heatpump and it seems to have some issues. I set the thermostat to about 72 on "Elec Heat" mode and I can hear it kick on, the floor vents also blow a little cool air at this time. It'll run for a few minutes and then shut off. The thermostat actually seems to just switch to "OFF". So I went back to "gas heat" and it worked great for a couple days. But today I turned it to 72 "gas heat" when I got home after work and it ran and pushed out hot air for a couple minutes and went to "off" mode. There's still power to everything, but the thermostat seems to be switching to "OFF". I went out and checked the "sail switch", it seems to make contact the whole time it runs. I can't figure out what's wrong and this is my live-in unit, now with no heat in Washington.
For info: I have a Coleman-Mach 9420-381 thermostat, AirXcel Suburban vertical gas furnace, and a Coleman-Mach 48000 heat pump.
Thank you any help.
So I have a 2024 3915tb and I started having some issues recently with the heating. I usually run the propane furnace since it's been so cold but recently tried the heatpump and it seems to have some issues. I set the thermostat to about 72 on "Elec Heat" mode and I can hear it kick on, the floor vents also blow a little cool air at this time. It'll run for a few minutes and then shut off. The thermostat actually seems to just switch to "OFF". So I went back to "gas heat" and it worked great for a couple days. But today I turned it to 72 "gas heat" when I got home after work and it ran and pushed out hot air for a couple minutes and went to "off" mode. There's still power to everything, but the thermostat seems to be switching to "OFF". I went out and checked the "sail switch", it seems to make contact the whole time it runs. I can't figure out what's wrong and this is my live-in unit, now with no heat in Washington.
For info: I have a Coleman-Mach 9420-381 thermostat, AirXcel Suburban vertical gas furnace, and a Coleman-Mach 48000 heat pump.
Thank you any help.
Last edited: