Shark Infinity NR90C Vacuum Cleaner Manual

The Shark Infinity NR90C is a versatile upright vacuum cleaner featuring DuoClean PowerFins technology, Lift-Away capability, Anti-Allergen Complete Seal, LED headlights, and a swivel steering nozzle. It includes multiple attachments for above-floor cleaning, a large dust cup capacity, and advanced filtration. 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. Using Attachments 7. Cleaning Modes 8. Maintenance & Care 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: DuoClean PowerFins brushroll, Lift-Away pod, Anti-Allergen Complete Seal filtration, LED headlights, swivel steering, crevice tool, dusting brush, pet multi-tool, and upholstery tool.

Feature	Description
DuoClean PowerFins	Dual brushroll system for carpets and hard floors
Lift-Away Mode	Detachable pod for portable above-floor cleaning
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 Dust Cup	Easy-empty, no-touch dirt disposal
Power Switch	Turns vacuum on/off
Brushroll Control	Activates/deactivates brushroll for hard floors
Height Adjustment	Adjusts for different carpet pile heights
Attachment Holder	Stores tools on-board for easy access

Assembly & Setup

Unpack and inspect all contents. Assemble on a flat surface.

Attach handle: Insert handle into main body until it clicks securely.
Install wand: Insert wand into handle or Lift-Away pod until locked.
Attach hose: Connect hose to pod or wand as needed.
Attach floor nozzle: Insert wand into floor nozzle until it clicks.
Plug into AC power outlet.

WARNING! Ensure all parts are securely connected before use. Keep fingers away from moving parts.

First-Time Use

Before first use, ensure assembly is complete and dust cup is empty.

Power on: Press power switch on handle.
Select mode: Use upright mode for floors; detach pod for Lift-Away mode.
Adjust height: Set appropriate height for carpet type.
Test attachments: Connect tools to hose end for above-floor cleaning.
Empty dust cup after initial use to ensure optimal suction.

CAUTION! Do not vacuum large objects, liquids, or hot ashes. Keep hair and loose clothing away from brushroll.

Specifications

Model: Shark Infinity NR90C.
Technology: DuoClean PowerFins with Anti-Hair Wrap.
Filtration: Anti-Allergen Complete Seal with HEPA filter.
Dust Cup Capacity: 1.3 quarts (dry).
Cord Length: 25 feet.
Attachments: Crevice tool, dusting brush, pet multi-tool, upholstery tool.
Power Source: 120V AC, 60Hz.
Warranty: 5-year limited warranty.
Weight: 15.2 lbs (assembled).

Controls and Settings

Main controls located on handle and body. Handle: Power switch, brushroll on/off button. Body: Height adjustment lever, Lift-Away release button, dust cup release.

Settings: Upright mode for floors; Lift-Away mode for stairs and above-floor cleaning; brushroll on for carpets, off for hard floors; height adjustment (low, medium, high) for carpet pile.

LED indicators: Power on (blue light); brushroll active (green light); filter check (red light when filter needs cleaning).

Using Attachments

Attach tools to hose end for specialized cleaning.

Detach hose from dock or wand.
Insert desired tool into hose end until secure.
Select Lift-Away mode for portable cleaning.
Use crevice tool for tight spaces; dusting brush for shelves; pet multi-tool for pet hair; upholstery tool for furniture.
Return tools to on-board holder after use.

Tip: Ensure vacuum is off when changing attachments.

Cleaning Modes

Supports multiple cleaning configurations.

Upright Mode: For floor cleaning; use height adjustment for carpets.
Lift-Away Mode: Press release button to detach pod; clean stairs, furniture, ceilings.
Above-Floor Mode: Attach tools to hose for detailed cleaning.
Hard Floor Mode: Turn brushroll off to prevent scattering debris.
Carpet Mode: Brushroll on for deep cleaning; adjust height as needed.

WARNING! Do not use Lift-Away mode to vacuum while pod is detached from floor nozzle on stairs; hold securely.

Maintenance & Care

Regular maintenance ensures optimal performance.

Empty dust cup: Press release button; empty when full or after each use.
Clean filters: Rinse foam and felt filters monthly; air dry completely before reinserting.
Check brushroll: Remove debris and hair wrap regularly.
Inspect hose and attachments for clogs.
Store in a dry place; wrap cord around hooks.

CAUTION! Unplug before maintenance. Do not use wet filters; allow 24 hours to dry completely.

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 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, nozzle, and filters for blockages.
Brushroll not spinning	Debris wrap/obstruction	Turn off, unplug, and clear brushroll of hair and debris.
Vacuum won't turn on	Power cord/outlet	Check power cord connection; try different outlet; ensure power switch is on.
Unusual noise	Foreign object in airway	Turn off immediately; inspect hose, nozzle, and brushroll for obstructions.
Dust escaping	Filter not installed/sealed	Ensure filters are clean, dry, and properly seated; check dust cup seal.

Reset: Unplug for 1 minute; restart. Check filters and empty dust cup.

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