Shark APEX Duoclean NV850 Series Vacuum Cleaner Manual

The Shark APEX Duoclean NV850 Series is a powerful upright vacuum cleaner featuring DuoClean technology for deep carpet cleaning and bare floor pickup, Anti-Allergen Complete Seal technology with a HEPA filter, LED headlights, a large-capacity dust cup, powered lift-away functionality for above-floor cleaning, and various attachments for versatile 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. Using Attachments 7. Maintenance & Cleaning 8. Storage & Care 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: DuoClean PowerFins brushroll, Anti-Allergen Complete Seal with HEPA filter, LED headlights on nozzle, Powered Lift-Away mode, Large-capacity dust cup, On-board attachment holder, and various cleaning tools.

FeatureDescription
DuoClean TechnologyCombines a soft brushroll for hard floors and a bristle brushroll for carpets
Anti-Allergen Complete SealTraps 99.9% of dust and allergens inside the vacuum
HEPA FilterCaptures 99.97% of particles down to 0.3 microns
LED HeadlightsIlluminates hidden debris under furniture
Powered Lift-AwayDetachable pod for portable above-floor cleaning
Large Dust CupEasy-to-empty, high-capacity container
On-Board AttachmentsConvenient storage for crevice tool and upholstery tool
Adjustable HandleErgonomic design for comfortable use
Brushroll ShutoffAutomatically stops brushroll on hard floors
Power SwitchTurns vacuum on/off

Assembly & Setup

Unpack and inspect all contents. Assemble before first use.

  1. Attach the handle: Insert the handle into the main body until it clicks into place.
  2. Install the wand: Insert the wand into the hose connection on the back of the vacuum.
  3. Attach the hose: Connect the hose to the wand and the main unit.
  4. Mount attachments: Place the crevice tool and upholstery tool onto the on-board holders.
  5. Plug into a standard 120V AC outlet.

WARNING! Ensure all parts are securely connected before operation. Keep fingers away from brushroll during assembly.

First-Time Use

Before first use, ensure the vacuum is fully assembled and filters are installed.

  1. Check filters: Ensure the HEPA filter and foam filter are properly seated in the dust cup.
  2. Select floor setting: Use the floor selector switch (Carpet/Hard Floor).
  3. Power on: Press the power switch on the handle.
  4. Test suction: Vacuum a small area to ensure proper operation.
  5. Empty dust cup: After initial use, empty the dust cup to maintain suction.

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

Specifications

Controls and Settings

Main controls located on the handle and body. Handle: Power switch, floor selector (Carpet/Hard Floor). Body: Dust cup release, brushroll access, hose release for Lift-Away mode.

Operation Modes: Upright mode for floors, Powered Lift-Away mode for stairs and above-floor cleaning. Settings: Adjust suction power via floor selector; brushroll automatically shuts off on hard floors.

Using Attachments

Attachments enhance cleaning versatility. Accessories: Crevice tool for tight spaces, upholstery tool for furniture, pet multi-tool for pet hair.

  1. Detach hose: Press hose release button to remove hose from wand.
  2. Connect tool: Insert desired attachment into the end of the hose.
  3. Select mode: Use in Lift-Away mode for above-floor cleaning.
  4. Clean: Guide attachment over surfaces; empty dust cup as needed.

Tip: For pet hair, use the pet multi-tool with the brush activated.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

  1. Empty dust cup: Press release button; empty contents into trash.
  2. Clean filters: Remove HEPA and foam filters; tap to remove dust. Wash foam filter with water every 3 months (air dry completely).
  3. Clear brushroll: Turn vacuum over; remove debris from brushroll with scissors or cleaning tool.
  4. Check hose and wand: Remove clogs with a long object if suction decreases.
  5. Inspect belt: Replace if brushroll does not spin (see troubleshooting).

WARNING! Unplug vacuum before performing any maintenance. Do not use damaged filters.

Storage & Care

Store in a cool, dry place. Wrap cord around cord hooks. Secure attachments on holders.

CAUTION! Do not store with a full dust cup. Keep away from heat sources and direct sunlight.

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
Loss of suctionFull dust cup/clogEmpty dust cup; check hose, wand, and nozzle for clogs.
Brushroll not spinningDebris/belt issueClear debris from brushroll; inspect and replace belt if worn.
Vacuum shuts offOverheating/full filtersLet cool for 60 minutes; clean or replace filters.
Poor pickup on carpetsIncorrect settingSet floor selector to Carpet mode; ensure brushroll is engaged.
Unusual noiseForeign objectTurn off and unplug; inspect brushroll, hose, and wand for obstructions.

Reset: Unplug for 60 minutes to reset thermal cutoff.

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

Shark APEX Duoclean NV850 Series Vacuum Cleaner Manual © - All Rights Reserved 2025