Could Coleman Mach 2-Zone Thermostat 8330-335 Be Wired Backwards?

Discussion in 'Towing, Vehicles, Maintenance and Repairs' started by JJs RV, May 4, 2022.

  1. JJs RV

    JJs RV
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    Hi All,

    I have a recently purchased '02 Fleetwood Bounder 39R diesel pusher. I have noticed that the thermostat seems to be difficult to control. Running a series of tests, one thing I figured out is that while Zone 1 runs the Front A/C unit (Main Salon) and Zone 2 runs the Rear A/C unit (Bedroom) oddly if I blow a hairdryer on the sensor in the main salon, the rear A/C unit turns on. Likewise, if I blow the hairdryer on the thermostat itself, which is located near the bedroom of the vehicle, the front A/C unit turns on. I haven't found a wiring diagram, yet, but I am wondering if anyone has seen anything like this and knows what's going on or how to rewire it?
     
  2. Rollin Ollens

    Rollin Ollens
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    It appears that the controller is incorrectly wired. Follow the link. Installation instructions and wiring diagram is included. https://www.rvupgradestore.com/v/vspfiles/assets/pdf/8330D3351.pdf

    Good luck

    Darrell
     
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  3. JJs RV

    JJs RV
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    Thanks, Darrell.

    I will read that through and see if I can get any ideas. At least I can read this one. I finally located the manual for the controller on the coach last night but it's a little 3" X 3" booklet and the diagrams are too small to view, even with a magnifying glass. This version is much appreciated. JJ
     
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