Shark Infinity NV31C Vacuum Cleaner Manual

The Shark Infinity NV31C is a versatile upright vacuum cleaner featuring DuoClean technology, Lift-Away capability, Anti-Allergen Complete Seal, LED headlights, and a large-capacity dust cup. It is designed for deep cleaning on both carpets and hard floors. 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. Lift-Away Mode 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: DuoClean brushroll, Lift-Away pod, Anti-Allergen Complete Seal filtration, LED headlights, large dust cup, wand, and various attachments.

FeatureDescription
DuoClean TechnologyDual brushrolls for carpets and hard floors
Lift-Away ModeDetachable pod for portable cleaning
Anti-Allergen Complete SealTraps 99.9% of dust and allergens
LED HeadlightsIlluminates dark areas under furniture
Large Dust CupEasy-empty, no-touch dirt disposal
Motorized Pet ToolFor removing pet hair from upholstery
Crevice ToolFor tight spaces and corners
Dusting BrushFor delicate surfaces and dusting
Upholstery ToolFor cleaning sofas and chairs
Power SwitchTurns vacuum on/off

Assembly & Setup

Unpack and inspect all contents. Assemble before first use.

  1. Attach handle: Insert handle into main body until it clicks into place.
  2. Attach wand: Insert wand into handle or Lift-Away pod.
  3. Attach floor nozzle: Connect floor nozzle to wand or main body.
  4. Install filters: Ensure pre-motor and post-motor filters are properly seated.
  5. Plug into AC power.

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

First-Time Use

Power on vacuum; adjust settings for floor type.

  1. Select floor setting: Use dial on floor nozzle for carpets or hard floors.
  2. Adjust suction: Use suction control on handle if available.
  3. Empty dust cup: Ensure dust cup is empty before first use.
  4. Check filters: Verify filters are clean and properly installed.

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

Specifications

Controls and Settings

Main controls: Power switch, floor type dial, suction control, Lift-Away release button.

Floor Type Dial: Adjust for carpets (setting I) or hard floors (setting II).

Suction Control: Located on handle; adjust for different surfaces. Lift-Away Release: Press to detach pod for above-floor cleaning. Brushroll On/Off: Switch to turn brushroll on for carpets or off for hard floors/delicate rugs.

Using Attachments

Attach tools to wand or Lift-Away pod for specialized cleaning.

  1. Turn off vacuum before changing attachments.
  2. Select tool: Choose appropriate attachment for the task.
  3. Connect: Insert tool into wand or pod until it clicks.
  4. Clean: Turn on vacuum and use tool as needed.

Tip: Use motorized pet tool on upholstery; crevice tool for edges; dusting brush for shelves.

Lift-Away Mode

Detach pod for portable cleaning above floors.

  1. Press Lift-Away release button on main body.
  2. Lift pod away from floor nozzle.
  3. 3. Attach wand and desired tool to pod.
  4. Carry pod to clean stairs, furniture, or other above-floor areas.
  5. Reattach pod to floor nozzle by aligning and pressing until it clicks.

WARNING! Ensure pod is securely attached before returning to upright mode.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

  1. Empty dust cup: Press release button; empty into trash.
  2. Clean filters: Rinse pre-motor and post-motor filters every month; air dry completely.
  3. Check brushroll: Remove debris wrapped around brushroll; ensure it spins freely.
  4. Inspect hose and wand: Clear any blockages.

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

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

SymptomPossible CauseCorrective Action
Vacuum won't turn onPower cord/outletCheck power cord connection; try different outlet.
Loss of suctionFull dust cup/clogEmpty dust cup; check hose, wand, and nozzle for blockages.
Brushroll not spinningDebris/worn beltClear debris from brushroll; inspect and replace belt if necessary.
Vacuum overheatingClogged filtersClean or replace filters; allow vacuum to cool.
Unusual noiseForeign objectTurn off and check for objects in brushroll, hose, or wand.

Reset: Unplug for 60 minutes if motor overheats.

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

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