Question about Broan-NuTone N-763RLN Combination Light Fan Exhaust Fan

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My Bathroom Fan (Nutone) is sucking very little but blowing quite abit from around the fan asembly meets the cutout in the ceiling. The vent outside is blowing out quite a bit of air, (more than whats being sucked up) I took apart the fan and took out the motor and the baffle looks to open and shut just fine. I Need some help please!!!

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If there is no suction my question back you would be do you have a leak around the box in the cealing did you use calking material when you installed it? let me know so I can help. Also do you have a window open to see if the room breaths? Just some ideals Reply back for more help.

Posted on Aug 31, 2010

  • jjohnson4414 Aug 31, 2010

    I did not use a calking material when I installed it. But I used duct tape around it today and then the sucking came from the holes/clips etc, built into the fan asembly. So I can't really tape up the whole unit. Also I have tried it with the door open and shut and really no difference.
    Thanks for your reply

  • Bruce Hathcock Aug 31, 2010

    If it's blowing out the vent tube then there may not be a problem. a way to test is use a candle light it any candle a birthday candle will do then turn the fan on and hold the candle lit about 20 inchs away fron the fan and off to the side, then blow out the candle and watch the smoke if the smoke goes up quickly into the fan then it's working. As for tape I would not use it I would replace the tape with the expansion foam you can buy at a hardware store to fill cracks with one can will fil large areas. Also pull the cover off and look at the fan be sure the blade is turning the right way hope this helps. Remember there won't be that much suction because you have a large room to pull from and a small confined spase to blow threw the pipe so you may not have a problem.


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