Shark INFINITY NV31N Vacuum Cleaner Manual

The Shark INFINITY NV31N is a versatile upright vacuum cleaner featuring DuoClean PowerFins technology, Anti-Allergen Complete Seal, LED headlights, a large-capacity dust cup, and a multi-surface brush roll. It offers powerful suction for carpets and hard floors, advanced filtration to trap dust and allergens, and a flexible wand for above-floor cleaning. 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. Storage & Handling 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: DuoClean PowerFins brush roll, Anti-Allergen Complete Seal filtration, LED headlights, large dust cup, flexible wand, upholstery tool, crevice tool, dusting brush.

Feature	Description
DuoClean PowerFins	Combines bristle brush and soft roller for carpets and hard floors
Anti-Allergen Complete Seal	Traps 99.9% of dust and allergens inside the vacuum
LED Headlights	Illuminates dark areas under furniture
Large Dust Cup	Easy-to-empty, no bags required
Flexible Wand	Extends for above-floor cleaning
Multi-Surface Brush Roll	Automatically adjusts between floor types
POWER Button	Turns vacuum on/off
Brush Roll Switch	Engages/disengages brush roll for hard floors
Suction Control	Adjusts suction power for different surfaces
Wand Release	Detaches wand for handheld use

Assembly & Setup

Unpack and inspect all parts. Assemble before first use.

Attach handle: Insert handle into body until it clicks into place.
Install wand: Insert wand into handle socket and secure.
Attach hose: Connect hose to wand and body ports.
Attach tools: Store crevice tool and dusting brush on dock.
Plug into AC power outlet.

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

First-Time Use

Plug in vacuum; ensure all parts are securely connected.

Select surface setting: Use brush roll switch for carpets or hard floors.
Adjust suction: Use suction control for delicate rugs or high-pile carpets.
Begin cleaning: Press POWER button and push vacuum forward.
Use tools: Detach wand and attach tools for above-floor cleaning.

CAUTION! Keep hair, cords, and small objects away from brush roll to prevent damage.

Specifications

Model: Shark INFINITY NV31N.
Technology: DuoClean PowerFins, Anti-Allergen Complete Seal.
Filtration: HEPA-grade filter; captures 99.9% of dust and allergens.
Attachments: Flexible wand, upholstery tool, crevice tool, dusting brush.
Dust Cup Capacity: 1.5 quarts.
Cord Length: 25 feet.
Power Source: 120V AC, 60Hz.
Weight: 14.5 lbs.

Controls and Settings

All controls are located on the handle. Power Button: Turns vacuum on/off. Brush Roll Switch: Toggles brush roll on for carpets, off for hard floors. Suction Control: Adjusts suction power (Low/High). Wand Release: Press to detach wand for above-floor cleaning.

LED Indicators: Headlights activate automatically in dark areas. Filter Check Light: Illuminates when filter needs cleaning.

Cleaning Modes

Carpet Mode: Brush roll engaged for deep cleaning. Hard Floor Mode: Brush roll disengaged to prevent scattering debris. Above-Floor Mode: Use wand and tools for furniture, stairs, ceilings.

Select appropriate mode for surface.
Adjust suction as needed.
Move vacuum slowly for thorough cleaning.

Tip: Empty dust cup when it reaches MAX line for optimal performance.

Maintenance & Care

Regular maintenance ensures peak performance.

Empty dust cup: Press release button, remove cup, and empty contents.
Clean filter: Remove filter, tap gently, rinse under cold water (air dry 24 hours).
Clear brush roll: Turn vacuum over, remove cover, cut away tangled debris.
Check hose and wand for clogs.

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

Storage & Handling

Store in a dry, cool place. Wrap cord around cord hooks. Attach tools to dock.

CAUTION! Do not store with wet filter. Keep away from heat sources.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © SharkNinja Operating LLC. All trademarks are property of SharkNinja. For support, visit www.sharkclean.com or contact 1-800-798-7398.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Loss of suction	Full dust cup/clog	Empty dust cup; check hose, wand, and brush roll for blockages.
Brush roll not spinning	Tangled debris/switch off	Clear brush roll; ensure brush roll switch is ON for carpets.
Vacuum won't turn on	Power cord/outlet	Check power cord connection; try different outlet.
Filter light on	Dirty filter	Clean filter as per instructions; allow to dry completely.
Scattering debris on hard floors	Brush roll engaged	Turn brush roll switch OFF for hard floors.

Reset: Unplug for 10 minutes, then restart.

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