Shark DuoClean NV831 Vacuum Cleaner Manual

The Shark DuoClean NV831 is a versatile upright vacuum cleaner featuring DuoClean technology with a soft roller for large debris and a bristle brush for deep carpet cleaning, Anti-Allergen Complete Seal technology, LED headlights, swivel steering, multiple cleaning modes, and a large-capacity dust cup. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly & Setup 3. First-Time Use 4. Specifications 5. Controls and Settings 6. Cleaning Modes 7. Maintenance & Care 8. Accessories 9. Safety Information 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: DuoClean floor nozzle, Anti-Allergen Complete Seal system, LED headlights, swivel steering handle, power switch, mode selector, dust cup release button, accessory storage.

Feature	Description
DuoClean Technology	Dual-brushroll system for all floor types
Anti-Allergen Complete Seal	Traps 99.9% of dust and allergens inside the vacuum
LED Headlights	Illuminates dark areas under furniture
Swivel Steering	Maneuvers easily around obstacles
Large Capacity Dust Cup	Easy-empty, no bags required
Cleaning Modes	Hard Floor, Carpet, and Bare Floor settings
Accessory Storage	On-board storage for crevice tool and upholstery tool
Washable Filters	Foam and felt filters for easy maintenance
Power Cord	25-foot cord with cord wrap
Handle Release	Converts to handheld vacuum

Assembly & Setup

Unpack and inspect all parts. Assemble according to instructions.

Attach handle: Insert handle into main body until it clicks securely.
Install floor nozzle: Align nozzle with vacuum body and push until locked.
Attach hose and wand: Connect hose to vacuum front and wand to hose.
Store accessories: Place crevice tool and upholstery tool in onboard storage.
Plug into electrical outlet.

WARNING! Ensure vacuum is unplugged during assembly. Handle with care to avoid pinching.

First-Time Use

Before first use, ensure filters are installed correctly.

Check filters: Ensure foam and felt filters are in place in dust cup.
Select cleaning mode: Use mode selector for appropriate floor type.
Adjust height: For carpets, adjust floor nozzle height if applicable.
Power on: Press power switch; LED lights will illuminate.
Begin cleaning: Push vacuum forward on floor surface.

CAUTION! Do not vacuum wet spills, large objects, or hot ashes.

Specifications

Model: Shark DuoClean NV831.
Technology: DuoClean brushroll system.
Filtration: Anti-Allergen Complete Seal with HEPA filter.
Dust Cup Capacity: 1.5 quarts.
Cord Length: 25 feet.
Cleaning Modes: Hard Floor, Carpet, Bare Floor.
Accessories: Crevice tool, upholstery tool, dusting brush.
Power Source: 120V AC, 60Hz.
Weight: 15.2 lbs.

Controls and Settings

Main controls located on handle and body. Handle: Power switch, mode selector, hose release. Body: Dust cup release, filter access, cord wrap.

Mode Selector: Hard Floor (for tile/wood), Carpet (for low to high pile), Bare Floor (for delicate surfaces). Power Switch: On/Off toggle. Hose Release: Press to convert to handheld mode. Dust Cup Release: Button to empty dust cup.

LED Lights: Automatically illuminate when powered on. Cord Wrap: Wrap cord around rear hooks for storage.

Cleaning Modes

Select appropriate mode for floor type.

Hard Floor Mode: For tile, hardwood, laminate; uses both brushrolls.
Carpet Mode: For carpets; activates deep-cleaning bristle brush.
Bare Floor Mode: For delicate floors; soft roller only.
Handheld Mode: Detach hose and wand for above-floor cleaning.

Tip: For best results, adjust speed according to debris amount.

Maintenance & Care

Regular maintenance ensures optimal performance.

Empty dust cup: Press release button; empty when full.
Clean filters: Rinse foam and felt filters monthly; air dry 24 hours.
Check brushrolls: Remove debris wrapped around brushrolls.
Inspect hose and wand: Clear any blockages.
Store properly: Wrap cord, store in dry area.

WARNING! Unplug before maintenance. Do not use damaged parts.

Accessories

Included accessories enhance cleaning versatility.

Accessory	Use
Crevice Tool	Cleans tight spaces, corners, between cushions
Upholstery Tool	Cleans furniture, stairs, car interiors
Dusting Brush	Dusts shelves, blinds, delicate surfaces

Attach accessories to wand or hose for above-floor cleaning.

Safety Information

Read all safety instructions before use.

Do not use outdoors or on wet surfaces.
Keep hair, loose clothing, fingers away from moving parts.
Do not vacuum flammable materials or sharp objects.
Unplug before servicing or changing accessories.
Keep vacuum away from heat sources.

CAUTION! To reduce risk of electric shock, do not immerse in water.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © SharkNinja Operating LLC. For support, visit sharkclean.com or contact 1-800-798-7398. Model NV831 conforms to applicable safety standards.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Vacuum not turning on	Power cord/outlet	Check plug connection; try different outlet; ensure power switch is on.
Loss of suction	Full dust cup/clog	Empty dust cup; check filters; clear hose/wand blockages.
Brushroll not spinning	Debris/tangle	Unplug and remove debris from brushroll; check for obstructions.
Vacuum overheating	Clog/filter	Turn off and unplug; clear clogs; clean filters; allow to cool.
Unusual noise	Foreign object	Stop immediately; check for objects in brushroll, hose, or nozzle.

Reset: Unplug for 30 minutes if motor overheats.

Service: 1-800-798-7398; sharkclean.com