New to me and getting her figured out and back on the road.

[Dajain]

UPDATE!!!
The electric side of the furnace has a bad resettable thermocouple. It's not letting continuity flow thru, so the heating element is seeing white lead "juice" but the black wire is dead.

Now, the furnace.
At the furnace, I can bypass the thermostat and furnace lights right up.
Go to the thermostat and do a direct connection of the wires and no furnace.
Traced the wires and from the furnace, the T-stat wire goes thru the loom and goes up into the wall in the bedroom, of all places.
Now, before the wire goes up into the walls, I can jump those across and make the furnace run.
The wire in the basemen is probably 12-14 awg, but the wire at the furnace is regular furnace/thermstat wire.

I'm saying it would just be easier to take the wall panel off, run the wire directly to the T-stat and close it all u than try to chase that wire thru the walls to find the bad connection of stranded and solid wire.

Thoughts? Am I missing anything in that thermostat wiring other than the transition?

 

[TheLooks]

Yes, The furnace is turned on by the control box in the AC unit. It depends on which one you have. But the control box does all the switching while the thermostat tells it what to switch.
You may need another control box or at least pull down the filter and open the box up or take some pics and we can help you.

 

[fishslayer]

Best deal ever..FREE

 

[Dajain]

Yes, The furnace is turned on by the control box in the AC unit. It depends on which one you have. But the control box does all the switching while the thermostat tells it what to switch.
You may need another control box or at least pull down the filter and open the box up or take some pics and we can help you.

My set up is a little different than that. There is a thermostat for the heater, but the living area AC has a remote control. The bedroom AC has its own separate thermostat.

 

[Dajain]

Update!!! Again.
I found with the furnace, it is in the wiring. I bypassed the thermostat on the furnace and it fired right up.
Went to the thermostat inside and bypassed it and no start.
I then traced the wiring from the furnace, thru the basement and found where it goes up into the wall. Bypassed it there before the wiring disappears, and the furnace fired right up again.

So, I cut the wires there, before they go up into the walls. I then peeled the paneling back where the thermostat is and drilled a hole into the basement. I then routed the wire up into the wall and hoooked it to the thermostat.

Furnace is working perfect now.

Now onto the next project.

 

[TheLooks]

Glad it is working. My bet is the original wires went to one of the AC units. That is how these things work. But you have a good solution.

 

[Dajain]

Glad it is working. My bet is the original wires went to one of the AC units. That is how these things work. But you have a good solution.

Unikely. The main AC unit is 100% remote,, The furnace is on its own thermostat. No AC with the original temp control

 

[TheLooks]

Since I work on these for a living, or did, I can tell you the factory did not use stand alone thermostats for the furnace in 2010. Landmark came with Dometic installed. Someone has made "adjustments" and you are having to figure that out. No matter, you have it working, but there was a single thermostat that controlled the AC and the furnace originally. It is just the way they are built. I have also installed stand alone thermostats for people when they went to a remote AC unit like an Advent and needed to run the furnace.

 

[Dajain]

Since I work on these for a living, or did, I can tell you the factory did not use stand alone thermostats for the furnace in 2010. Landmark came with Dometic installed. Someone has made "adjustments" and you are having to figure that out. No matter, you have it working, but there was a single thermostat that controlled the AC and the furnace originally. It is just the way they are built. I have also installed stand alone thermostats for people when they went to a remote AC unit like an Advent and needed to run the furnace.

I asked the man I got this from many questions. He bought it new in 2011, never had any major repairs or upgrades and both the AC's are original equipment.

If these "adjustments" we not original, then that would mean that this high dollar camper in 2010 did not come with any air conditioning because the only wiring in the wall for the thermostat is that for the furnace. There is no extra wires in the wall for 1, or 2 air conditioners.

And I could understand the bedroom being an "adjustment" with the stand alone thermostat, but the fact that wiring is installed into the original wiring harness also makes it doubtful it was later added.

Both air conditioners are made by Carrier and not Dometic. Have the owners manual for both of them. This indicates, along with what the original owner told me, that it came with what is currently on it.

 

[TheLooks]

Carrier had a remote control unit, hardly see them anymore. But there are conversion kits I have seen where the unit fails and the AC is no longer available and others fit etc. The reason I am arguing with you, stupidly, is that they set these things up to not run the furnace and the AC at the same time because the general public is dumb. I meet people all the time that are not aware they even have a furnace or heat pump etc. Amongst other things......90+% or more do not know whatsoever that the control box in the AC unit actually turns on the furnace not the thermostat. The thermostat is just a switch that talks to the control box. It is irrelevant as you have it working by whatever method. It works.