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-   -   Have older model Heil HVAC the fan blower works on heat but not on cool . (https://www.askmehelpdesk.com/showthread.php?t=477435)

  • Jun 7, 2010, 07:32 PM
    deborahanna
    Have older model Heil HVAC the fan blower works on heat but not on cool .
    We have tried everything .Cleaned the coils on the outside unit , changed the thermostat and still the inside fan does not blow on cool but it works perfectly fine on heat .We also tried fan only and that didn't work either .
  • Jun 7, 2010, 07:40 PM
    twinkiedooter

    It's the contactor switch. Needs replaced. Same thing happened to me.

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