20 Most Recent Hoover Commercial C1660-900 Bagless Upright Cyclonic Vacuum Questions & Answers


What is happening is the secondary filters, HEPA and the canister all need to be cleaned. This is vital. What the vacuum repair people are keeping from you is that tidbit of wisdom. This particular vacuum is picky about airflow. Pull the canister, and on the body of the vacuum on top of where the canister sits are the secondary filters. There should be a sticker explaining how to remove them. Clean them throuougly, mine was filthy. Make sure you clean the canister by unlocking it and cleaning out the micro holes and the cone end. Mine was completely plugged. Now brush the dirty side of the HEPA filter with the combo tool. Let the secondary filters dry completely (you can blow dry them on cold) Re-install everything, and the vacuum will run like brand new. I vacuumed the whole house after I completed this maintainence and it works like a champ. Don't return this vac until you clean it completely.

Hoover... | Answered on Aug 10, 2010


you most likely have a leak. inspect the bottom casing for cracks, and inspect all seals and gaskets, especially around the dust bin. try putting mild downward pressure on the dust bin with your hands while it is running, listening for a change in the sound or suction.

Hoover... | Answered on Jan 20, 2010


If the machine overheats, a breaker trips. Most breakers reset themselves after they cool off. You may have a manual reset button to push on your model. The machine will overheat if the bag is too full, or if the exhaust port is clogged. The reset switch is usually on the back of the motor housing, near the footswitch.

Hoover... | Answered on Apr 24, 2009


If the filters are ok, and there is no clog in the hose or dirt inlet down by the brushroll, then the motor protector is probably bad.

Hoover... | Answered on Mar 30, 2008


i would assume that would be where you turn it on right??

Hoover Vacuums | Answered 2 days ago


Request directly from Hoover

Hoover Vacuums | Answered on Sep 13, 2019


Turn it upside down to find the belt. Use what Hoover recommends for replacement.

Hoover Vacuums | Answered on Sep 05, 2019


Order the manual from Hoover.

Hoover Vacuums | Answered on Aug 29, 2019


Google (hoover)(5240)(manual) without parens OR contact Hoover directly to request it.

Hoover Vacuums | Answered on Aug 25, 2019


Hello, Lana -

It looks like the Hoover F5835-900 is a steam cleaner. This is the link to a Sears PartsDirect website where you can download the manual:
https://www.searspartsdirect.com/manual/3rniocgylx-000517/hoover-f5835-900-steam-cleaner

It was easy to locate. I used Google and entered the following search phrase: Hoover F5835-900

Best wishes.

Hoover Vacuums | Answered on Aug 21, 2019


Belt might be slipping. Probably need a new belt.

Hoover Vacuums | Answered on Aug 11, 2019

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