Question about Broan-NuTone CV353 Central Vacuum

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Nutone cv353 central vac blew up

We just moved into our new home and the nutone central vac just stopped working. Checked the unit mounted in the garage and smelled a burning electrical fire. The fuse button was tripped and pressing the button down does restart the unit but it gets tripped again. Is this indicative of a burnt motor and should I replace the motor or whole unit if that's the case?

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My guess would be that the motor is done. Impossible to diagnose for sure without seeing it of course. If you were happy with the unit before the trouble, a replacement motor will probably run $250-$300. If you are interested in a new unit, shop around. There are definitely better designed and more powerful units out there, although some of them can cost quite a bit more than $300. Good Luck!!

Posted on Jan 01, 2009

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Posted on Jan 02, 2017

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2 Answers

Central vac not sucking


Check for a plugged tube in the wall by listening to the motor when it's running. If it sounds like it's running too fast then there's an obstruction. If it sounds ok, then there's a disconnected tube somewhere in the system.

Sep 11, 2014 | Broan-NuTone CV353 Central Vacuum

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How do we get the brushes out of a nutone cv353 when there isno room to get at the nuts?


If you're referring to carbon brushes, I'd have to see a picture taken from above the unit, close enough to see the nuts to which you refer.

Oct 22, 2013 | Broan-NuTone CV353 Central Vacuum

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Nutone cv353 unable to stop


You may have a stuck relay or one of your access port switches may be bad. According to the owners manual: "A complete check of all Wall Inlet and Power Unit low voltage control lead connections (external yellow leads). Turn system off by removing fuse or tripping circuit breaker at
house fuse box."

Dec 27, 2011 | Broan-NuTone CV353 Central Vacuum

1 Answer

Nutone CV353 does not shut off, think it is the relay board


You probably have a stuck relay. You can try tapping with medium force next to where the low voltage wires are attached to the unit using the handle end of a hammer. Even if this works it's time to replace the circuit board. Take the unit to a local vacuum repair center for service.

Jun 26, 2010 | Broan-NuTone CV353 Central Vacuum

1 Answer

Nutone Scovill 350 will only turn off if unplugged


Some units have an on/off switch on the power unit itself. Check to make sure that is not turned on. Unplug your power unit and remove the 2 low voltage wires (not the power cord itself) . The low voltage wires start at the unit and run throught your home and attach to each hose inlet. They are usually attached to the unit by simple wire terminals or wire capped to small wires coming out. Just unlug the terminals or unscrew the wire caps and pull the connections apart. Plug your machine back in. If it still comes on the problem is the relay or circuit board/switch/ relay assembly inside the unit. If it doesn't come on with the low voltage wires unattached then you may have two wires touching somewhere in the low voltage wiring.

May 14, 2010 | Broan-NuTone CV353 Central Vacuum

1 Answer

CV-353 will only go off by unplugging. Electrical disconnected from ports to unit. Checked push pins on all ports and they are moving in and out.


http://www.centralvacuumstores.com/cvs/trouble_help.php#runs_continuously

Here is a link to find a local dealer:
http://dealer.nutone.com/DealerLocator.aspx?unit_id=002&cata_id=8

Dec 23, 2009 | Broan-NuTone CV353 Central Vacuum

1 Answer

Wont turn off - runs constantly


It sounds to me that the relay has stuck contacts. Try tapping the relay with the HANDLE of a screwdriver if you can find it. BE SURE TO UNPLUG THE UNIT BEFORE YOU OPEN THE UNIT !! Most centrals now have circuit boards and not seperate parts like earlier vacs which means you will have to replace the board.
Another thing to try is to take loose one of the low voltage wires to see if the unit will stop. If it does, you have a short with the wires touching somewhere along the line.
I hope that I have helped.
Joe

Nov 15, 2009 | Broan-NuTone CV353 Central Vacuum

1 Answer

Nutone cv353 unable to stop


the parts are available. go to:

NuTone Customer Service
Email or Call 888-336-3948
Hours: M-F 8:30 am - 5 pm EST

please rate my answer as a fixya!

Feb 26, 2009 | Broan-NuTone CV353 Central Vacuum

1 Answer

NuTone CV353 Central Vac does not start when hose is plugged into


Try to plug the hose in sideways. So the top of the hose is rotated 90 degrees. If the unit turns on then there is something wrong with the hose. It might be a short or it could be a bad switch on the handle. If the unit still wont turn on I would think that maybe the low voltage wire got disconnected from the unit or there is a break in the low voltage wire somewhere along the way. Let me know if you plugging the hose in sideways works.

Feb 22, 2009 | Broan-NuTone CV353 Central Vacuum

2 Answers

I have a Nutone CV353 system in my utility room every time it


open a window, or the bathroom door if there is a vent in there it will draw in air from there, just be careful because if there is a bunch of dust up there it may fall out.

Jan 30, 2009 | Broan-NuTone CV353 Central Vacuum

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