[Motor31]

OK You have got a bit of diagnostics already done, great job on finding the issue with mice.

First off the furnace (propane) runs off of the thermostat in what is shown as zone 1 on the thermostat. Since you have dual AC units (I think that's what you indicated) the bedroom runs off of zone 2 and does not have the furnace on it.

Your rig MAY have one or two AC / heat pump units. They are not the furnace settings. The furnace will be labeled (in zone 1) as furnace and the heat pump will be labeled heat. The heat pump settings do show up first in line after cool on my thermostat (also an 05) then you click again to furnace. The thermostat temperature settings are the same for heat pump and furnace.

If you have a heat pump, changing the dip switches will change the heat pump but not the furnace. The furnace is a separate item only controlled by the thermostat and not the dip settings on the AC. If you do not have a heat pump again changing dip switches on the AC won't change the furnace situation.

If the furnace will run the blower but not light, you might want to check propane level and the regulator as well. See if the igniter is clicking. If the gas supply tube is blocked by wasp or other critter nest you may smell propane but not get enough to light the burner before it times out.

There have been folks who swapped out the thermostat in their rigs. You might want to try a search on this section of the bbs to find the threads. It was some time ago it was talked about.

Hope this helped some.