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    MisterMagoo's Avatar
    MisterMagoo Posts: 2, Reputation: 1
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    #1

    Apr 27, 2009, 06:48 PM
    HVAC - Fan runs but dampers stay closed
    I am trying to get the HVAC fan to circulate air in my house. Problem is the zone dampers stay closed when I turn the thermostat fan switch to on.

    I've got Durozone Multiline dampers that I can not manually open to let the air circulate. My control board is a Honeywell Trol-a-Temp and I have 2-zones w/ honeywell electronic thermostats.

    The fan runs but no air circulates. Any help would be gratefully appreciated. THANKS!

    MM
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Apr 27, 2009, 07:09 PM
    Check for power at the damper control motors,, if none trace back to where the power should be supplied,check again for voltage
    MisterMagoo's Avatar
    MisterMagoo Posts: 2, Reputation: 1
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    #3

    Apr 27, 2009, 07:20 PM
    Quote Originally Posted by wmproop View Post
    check for power at the damper control motors,,,if none trace back to where the power should be supplied,check again for voltage
    I'm not so sophisticated to really understand your suggestion but I have a multi-meter and I'm not afraid to use it. It seems that the dampers are only set up to open with the furnace or the A/C but not just the fan.
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