Question about Broan-NuTone N-LS100SE Exhaust Fan Exhaust Fan

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Noisey 8 x8 Broan Bathroom Exhaust Fan (With Light) (7 years old)

The fan assembly is starting to really vibrate. I do not see a way to get at the motor and bearings for replacement without just replacing the entire unit which is mounted to a Ceiling joist in the attic. The support bar that the fan motor is screwed to is not removable. It appears to be pressed or riveted into the fan housing. Is there some trick to removing the motor from inside the bathroom?

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  • ekissner Mar 21, 2009

    Isn't there a way to spray wd 40 on it?

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Mine was doing the same thing. I found it was coated with dust.

I took the blower out [unplugged it, and removed the single screw holding it to the box], took the face plate off [removed 4 or five screws] brushed the squirrel-cage fan blades using a narrow, long and stiff bristled brush, and reassembled it [used care to align the small plastic axle on the flap valve ] and reinstalled it. The vibration was greatly lessened and the fan was about as quiet as it had ever been.

Posted on Feb 02, 2009

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There usually is a way to pry out the motor (and bracket that it is attached to) from inside the bathroom. If you take the grill off and the light most of what you see is the bracket that the motor is attached to. look for a small screw along one edge or a small flange that is inserted into a slot in the actual housing. sometimes a straight screwdriver is necessary to pop it out. Most fan rattling, however, seems to come from either a blocked duct, or that the whole fan housing is loose somehow. Check that also.

Posted on Jan 29, 2009

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Broan Bathroom Fan Care and Cleaning


<p>One of the most common <b>bathroom fans</b> is the <b>Broan brand ventilation fan</b>. These fans come in many configurations and variations. Because of the environment that these fans are in and the placement of these fans they will get very dirty over a period of time and will need to be cleaned from time to time. <b>Cleaning bathroom fans </b>can be fairly easy if you have a few tips about how to do it.<br /> <p> <br> <p>To clean the fan the inside of the fan must be accessed first. To get to the inside of the fan the cover must be removed. Most of the covers simply will pull downward and away from the ceiling. There are a couple of springs, one on each side the snap the cover up and hold it in place. On some models there can be a screw that holds the cover. It will be visible right in the center of the cover. If no screw is visible then you can assume that it is a spring type cover. If there is a light in the cover you can remove the plug and the light will come right with the cover.<br> <p> <br> <p>After pulling the cover down simply squeeze the springs together slightly and the cover will come completely out and you can take it to your sink to wash it. Then take a vacuum or a damp rag and clean the inside of the fan compartment. If you look closely you will see that the fan assembly has a plug that can be pulled and the fan assembly can be removed by either removing a couple of screws or by placing a screw driver between the fan assembly and the side of the box and snapping out the fan assembly.<br> <p> <br> <p>Once you have the fan assembly out you can then use compressed air, like you use on your computer keyboard, or a damp cloth to clean the fan assembly. The compressed air works the best on the blower wheel and in some cases a small screw driver may be needed to remove caked on dust inside the fins of the fan.<br> <p> <br> <p>With you vacuum, you can now clean out the rest of the box and even into the vent hose a little bit. Be careful not to destroy the flapper, as that is what stops cold air from being pulled back into your home while the fan is off. Wipe down the box to complete the cleaning.<br> <p> <br> <p>The fan can now be reassembled by reversing everything and placing it all back as it was before you removed it. Be sure to remember to plug the fan motor back into the socket. The light may also need to be plugged in if you have a light in the cover.<br> <p> <br> <p>You will now have a nice clean fan again. <br> <p> <br> <p>If you want to <b>replace the fan</B> because it is broken worn out or noisy you can often <b>buy replacement bathroom fan parts</B> or even a new fan that will fit in the same box. Upgrades are available to fit existing boxes also. To find <b>bathroom fan upgrades</B> and replacements go to <a href="http://www.broan.com/">www.broan.com</A><br> <p> <br> <p>At <a href="http://www.broan.com/">www.broan.com</A> you can also <b>order <span> </SPAN>broan replacement parts</B>, <b>download broan manuals</B>, and get <b>installation tips for your broan fan</B>.

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