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  1. #1
    Join Date
    Nov 2007

    Default kitchen exhaust fan

    The backdraft damper behind the fan in ventilator doesn't close
    when fan is on off. How do I get to damper and how to clean this damper so that it closes when not in use. I assume it doesn't close due to grease build up. It is difficult to find this information.

  2. #2
    Join Date
    May 2008
    Pacific Northwet

    Default Re: kitchen exhaust fan

    After disconnecting power to the fan, you can probably get at the damper by removing the fan motor and blades. It will be awkward at best, but probably enough access to get it cleaned up.

    If the fan unit is not too heavy, you may be able to simply remove the whole works from the cabinet. Reinstalling it and lining it up to the ducting can be tricky.
    The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.

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