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Thread: New RTH6500 honeywell a/c not working

  1. #7
    Junior Member

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    No, the outside unit is not running with heat either. I checked the voltage while the heat was running in both the outside unit and in the Air handler

    C - 0
    O - 0
    Y - 25
    W - 25
    R - 25

  2. #8

    User Info Menu

    With the readings that you provided the the outside unit should have been running. Could be a contractor issue, control board issue or the unit may be out of refrigerant. May be time to have a HVAC tech check your system.

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