Community Forums

WendyRV · 11-28-2022, 12:49 PM

Hello, I have a 2006 Damon Challenger motorhome. Last year I replaced my two ac roof units. The remotes (which have been lost or accidentally thrown out) turned on power for AC units as well as the floor heat (Atwood Hydroflame Furnace). I bought a new (expensive) remote and it will not turn on the furnace/ floor heat. Before I return that remote, does anyone have any advice or tips for me? The remote was the only way to turn on the heat. Thank you

Gary RVRoamer · 11-28-2022, 03:46 PM

Without some further info about the previous remotes and the new one, I don't think we can even guess. The furnace doesn't know or care where the heat demand signal comes from - it's just a "thermostat wire" that goes to +12v when heating is needed.

There must be a thermostat somewhere to monitor interior temperature for both heating and cooling, and that may communicate to the a/c zone controller. Presumably your old remotes operated that. Does your new remote do any of the needed functions, e.g. set temperature, select cool vs heat, fan mode, etc?

WendyRV · 11-29-2022, 08:13 AM

There is no thermostat in the RV. The remote is it. Weird, I know. But old posts state the same thing. https://www.irv2.com/forums/f120/dam...at-374671.html

WendyRV · 11-29-2022, 09:55 AM

I found that Dometic now owns Atwood so I left Dometic a message about the atwood hydro flame 8535 remote/ thermostat.

Gary RVRoamer · 11-30-2022, 08:48 AM

Atwood/Dometic has nothing to do with how your remote's thermostat functions work, so they can't help you. The furnace only sees a signal on a wire demanding more heat (or not), so they can't help you.

I'm guessing your have a Carrier rooftop a/c or heat pump. That's what interfaces with the Atwood furnace when needed. You need help from Carrier or those with intimate knowledge of it's controller functions.

Again, what remote did you buy and does it claim to handle heating as well as a/c?

scenic route · 11-30-2022, 07:00 PM

Could it be that the remote is working, but the propane valve in the furnace is not opening...especially if the furnace is seldom used?

We replaced both roof top reversible a/c units and thermostat. We have two furnaces that both valves would not open. I massaged both with a small hammer...one started working and the other was frozen. I replaced the valve and now all is well.

Also, might check furnace ignitor/burner chamber for critter construction.