furnace wont turn off

[AlexPeterson]

In my case the thermostat was still calling for heat. What was unresponsive was the room temperature indication on the thermostat, it was "frozen" at 61F or whatever, while the actual temperature was continuing to rise. My OEM configuration used the sensor in the a/c unit for both heat and cool. Since the problem was intermittent, I decided to replace both the thermostat and the a/c control unit. I haven't used the heat enough to be convinced the problem is gone, but these two components are seemingly the only two involved. An added bonus is having a t-stat which has the temperature sensor integral (for heat - it still uses the ceiling unit control box sensor for a/c).

[Scott'n'Wendy]

(there are many threads about fixing this seemingly dumb idea).

Yes...let's measure room temperature from three feet over my head...lol
I've never had a temp issue with my trailer..I'll have to investigate in the spring to see what I have. Always assumed the sensor was in the t-stat. I did have to look at the A/C control unit when the fan would not go to high speed. Poor board connection.

[ncitro]

In my case the thermostat was still calling for heat. What was unresponsive was the room temperature indication on the thermostat, it was "frozen" at 61F or whatever, while the actual temperature was continuing to rise. My OEM configuration used the sensor in the a/c unit for both heat and cool. Since the problem was intermittent, I decided to replace both the thermostat and the a/c control unit. I haven't used the heat enough to be convinced the problem is gone, but these two components are seemingly the only two involved. An added bonus is having a t-stat which has the temperature sensor integral (for heat - it still uses the ceiling unit control box sensor for a/c).

This sounds like the Furrion unit, the Coleman that the original poster has does not operate this way.

[ajg617]

This sounds like the Furrion unit, the Coleman that the original poster has does not operate this way.

My Coleman/Airxcel thermostat has a remote sensor pin out listed in the documentation. Don't know if GD installed the remote sensor or not and I'm not sure what model t-stat I have. The document included in the black bag applies to 3 cool only and 3 heat/cool models (9430 series). Looks like the 9630 series document has a bit more data and should have been the one installed w/heat pump based upon what I've read in some prior posts dating back to 2019 here. Without pulling the t-stat to verify the model number, really no way I can tell. It would be a green/white wire for remote sensor but applies only to two of the 6 models 9430335 for heat/cool and 9430342 for cool only.