Question about Broan-NuTone CV350 Performance Bagged Central System Vacuum

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The unit comes on and the exhaust blows out however no suction at all. l placed a wet vac on the unit where the bag goes and all of the outlets pull some air. The unit is the cv350. Thanks.

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There would be 2 things potentially wrong here...

1) the black rubber gasket is missing off the body where the pail goes onto the machine. If that is missing there will be no suction.

2) This is a little more complex but will also lead to the same problem. up above where the bag goes there, is a filter. It could be clogged, but if you are getting a lot of air blowing out of the unit, I think it is more the rubber gasket between the motor and the body. You can check for this by looking behind the little motor pre-filter there (if it is even there) and check the motor intake for the unit. It is probably blocked or partially blocked with the motor gasket. To fix this you will need some weather stripping or another motor gasket.

Good luck.
Mark

Posted on Nov 08, 2010

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The Guardian Canister vacuums have a blow port under the filter. So you need to remove the filter (on the Guardian Ultra, you have to open the top of the vacuum) by lifting it up the forward. Then disconnect the hose from the normal suction end of the unit and plug it into the blower port. Now turn on the vacuum. If the hose is clogged, position the other end of the hose at the suction port.

For the Guardian canister, select the high, medium or low force for the motor. Then blow the dust out from under the furniture or use to fill an inflatable. Turn off the vacuum and replace the hose in the usual position and replace the filter when done.

If you are still unable to get the unit to blow out when connected to the exhaust port after attempting to clear the hose, separate the hose, wand and handle. Look down the hose for any object that might be creating a one-way valve. Remove the foreign object.Do the same with the other parts of the unit. Also replace the vacuum bag. If the bag is sufficiently full, the airflow will be reduced through the bag to the exhaust and cause the problem you describe.

The Electrolux Guardian Canister Vacuums are part of the Aerus line. The manuals for the vacuums are available here: http://www.aerusvacuums.com/support/manuals/index.cfm . The Guardian Ultra is in the current model section. The Guardian is listed in the Older Model drop-down menu.

I hope this helps.

Cindy Wells
(many canister vacuums have a blower mode when you connect the hose to the exhaust (after the bag) instead of the suction side of the unit.)

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1 Answer

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Try this:
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If it's a clog, try placing end of hose in the exhaust port, turn on machine, and blow clog free. You may need to place other end into intake. This should clear it.
If hose is cracked, punctured, or smashed/collapsed, replacement will be necessary.
If there's not much suction at the intake, it may be time to replace your vacuum, or at least the motor.

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