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-   -   Furnace fan goes on when in manual mode but won't work on auto (https://www.askmehelpdesk.com/showthread.php?t=182863)

  • Feb 11, 2008, 11:11 AM
    ozromero
    Furnace fan goes on when in manual mode but won't work on auto
    This is a 15 old unit I checked it yesterday and everything seems to work all right on manual mode but when turned on auto it fallows all steps but when it sends signal for fan to go on it does not work
  • Feb 11, 2008, 12:39 PM
    hvac1000
    Defective fan/limit control or a fan relay.

    At least you have heat in the manual blower mode.

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