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Kitchen Hood Broan Nutone RM5200 Hood won't pull air.

The range hood when turned on, won't **** air and has a loud knocking noise which vibrates the cabinets around.

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  • michael928 Feb 10, 2009

    Thank you for the reply. i ended up changing the motor assembly which includes the fan and the rattling is gone. But the vent isn't pulling that strong when the bottom vent is reattached. I plan to do a few things to test out what's wrong. 1) check to make sure the pipe that lets air out isn't blocked. I plan to use a thick rope and poke it through to see if it's sucks the air out. i can also use very small pieces of tissue paper and see if it blows out to the outside. My pipe outlet is the side of my house so I can actually see it from my porch 2) patch up all screw holes and holes which might let the air out 3) consider changing the duct to a 6 inch instead of the one that was installed, 6 inch outlet to a 3 inch duct. when turned on, i can hear the flaps opening up to let the air out but it closes and opens every other second, which is also annoying. Let me know what you think of my plan.

  • katg8 Apr 03, 2009

    It's not pulling air although the motor is running. It never worked since we moved in to this house. I'd like to know what 'metal plate' could have been left and how I could remove it. Thank you.

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  • 38 Answers

There is definetly somthing blocking the air from escaping, either the duct is blocked or the installer did not remove the metal plate which opens the fan up for it to be able to evacuate.

Posted on Feb 08, 2009

  • Jean-Marc Pelletier Feb 10, 2009

    Your plan sounds perfect! Keep me updated.

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