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tuseggrolls's avatar
tuseggrolls
Explorer
Apr 12, 2020

Coleman Airxcel thermostat and controller box installation

I did search, but I still need help to figure out what I did wrong, or probably, I didn't know enough. It has been a week of trying. I want to replace the mechanical manual control knobs of the Col...
A1RVTraveler's avatar
A1RVTraveler
Explorer
Apr 12, 2020
The blue wire from the thermostat goes to ground anywhere on the RV and also must be connected to the (B-) wire on the control box.

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