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Hoover
Canister Vacuum

Model # S3646-020 Official Hoover canister vacuum

Here are the diagrams and repair parts for Official Hoover S3646-020 canister vacuum, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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ALL PARTS
Showing 10 of 127 parts  |
Nameplate 51375132
#10B

Hose assembly diagram

Nameplate

Part #51375132

The manufacturer no longer makes this part, and there's no substitute part

Vacuum Motor Safety Filter 38765009
#41

Main body/motor/brake pad diagram

Vacuum motor safety filter

Part #38765009

The manufacturer no longer makes this part, and there's no substitute part

Vacuum Upholstery Nozzle 43414057

#NI06

All parts diagram

Vacuum upholstery nozzle

Part #43414057

The manufacturer no longer makes this part, and there's no substitute part

Vacuum Crevice Tool 38617017

#NI05

All parts diagram

Vacuum crevice tool

Part #38617017

The manufacturer no longer makes this part, and there's no substitute part

Vacuum Screw 21447236
#29

Power nozzle diagram

Vacuum screw

Part #21447236

The manufacturer no longer makes this part, and there's no substitute part

Spacer 31148011
#5A

Motor assembly diagram

Spacer

Part #31148011

The manufacturer no longer makes this part, and there's no substitute part

Extension Tube 43453023

#NI09

All parts diagram

Extension tube

Part #43453023

The manufacturer no longer makes this part, and there's no substitute part

Wire Tie 27479307
Wire tie

Part #27479307

The manufacturer no longer makes this part, and there's no substitute part

Ret Seal-lh 34633002
#46

Main body/motor/brake pad diagram

Ret seal-lh

Part #34633002

The manufacturer no longer makes this part, and there's no substitute part

Fan Cover 37196065
#3

Motor assembly diagram

Fan cover

Part #37196065

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your vacuum cleaners

Choose a symptom to see related vacuum cleaner repairs.

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Why does my vacuum cleaner shut off suddenly?

Main causes: damaged vacuum hose, clogged motor air filter, bad suction motor…

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Why doesn't my vacuum cleaner have good suction?

Main causes: weak suction motor, vacuum bag is full, clog in suction air path, dirty exhaust filter, leaky vacuum hose…

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Why doesn't my vacuum cleaner's brush roll spin?

Main causes: broken drive belt, damaged brush roll, tripped brush roll motor overload, bad brush roll motor, wiring fail…

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Why won't my vacuum cleaner turn on?

Main causes: lack of power, bad power cord, drive motor failure, wiring failure…

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Repair guides for canister vacuums

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How to replace a vacuum power head ribbed drive belt

How to replace a vacuum power head ribbed drive belt

Some canister vacuums have a ribbed drive belt that spins the brush roll on a power brush attachment. If the brush roll …

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a vacuum suction motor

How to replace a vacuum suction motor

The suction motor on a vacuum creates the draw of air at the cleaning head that picks up dirt. If the vacuum won't run, …

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Repair difficulty
Time required
 15 minutes or less
How to replace a vacuum beater bar

How to replace a vacuum beater bar

Replace the brush roll if the bristles ares worn or the cylinder is damaged.…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your vacuum cleaners

Use the advice and tips in these articles and videos to get the most out of your vacuum.

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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10 must-have tools for appliance repair

10 must-have tools for appliance repair

Come see which tools made our top 10 must-haves for DIY appliance repair.…

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Vacuum common questions

Vacuum common questions

Find the answers to frequently asked questions about vacuum cleaners.…

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