Shark FLEX Duoclean HV394Q Vacuum Cleaner Manual

The Shark FLEX Duoclean HV394Q is a versatile upright vacuum cleaner featuring DuoClean technology for deep carpet cleaning and hard floor pickup, powered lift-away functionality for above-floor cleaning, Anti-Allergen Complete Seal technology with HEPA filter, LED headlights, and a multi-flex wand for reaching under furniture. 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 brushroll, Lift-Away pod, Multi-Flex wand, HEPA filter, LED headlights, Power button, Mode selector.

Feature	Description
DuoClean Technology	Combines bristle brushroll and soft roller for carpets and hard floors
Power Lift-Away	Detachable pod for portable above-floor cleaning
Anti-Allergen Complete Seal	Traps 99.9% of dust and allergens inside the vacuum
HEPA Filter	Captures 99.97% of particles down to 0.3 microns
LED Headlights	Illuminates dark areas under furniture
Multi-Flex Wand	Bends to clean under furniture without moving it
Power Button	Turns vacuum on/off
Mode Selector	Switches between Carpet, Hard Floor, and Lift-Away modes
Brushroll On/Off	Disengages brushroll for delicate rugs
Cord Hook	Stores power cord when not in use

Assembly & Setup

Unpack and inspect all contents. Assemble before first use.

Attach handle: Insert handle into body until it clicks securely.
Install wand: Insert wand into handle until it locks.
Attach hose: Connect hose to pod and wand.
Install filters: Place HEPA filter in back compartment; foam filter in front.
Plug into AC power.

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

First-Time Use

Power on vacuum; select appropriate cleaning mode.

Select surface type: Use mode selector for Carpet or Hard Floor.
Adjust height: Vacuum auto-adjusts; manually raise/lower for thick carpets.
Use Lift-Away: Press release button to detach pod for stairs/upholstery.
Empty dust cup: Press release button when full; empty into trash.

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

Specifications

Model: Shark FLEX Duoclean HV394Q.
Technology: DuoClean with Power Lift-Away.
Filtration: Anti-Allergen Complete Seal with HEPA filter.
Attachments: Crevice tool, dusting brush, pet multi-tool, upholstery tool.
Cord Length: 25 feet.
Dust Cup Capacity: 0.9 quarts.
Weight: 14.5 lbs.
Power Source: 120V AC, 60Hz.
Warranty: 5-year limited warranty.

Controls and Settings

Access controls on handle and body. Handle: Power button, Mode selector, Brushroll switch. Body: Lift-Away release, Dust cup release, Cord hook.

Modes: Carpet (auto-adjusts height), Hard Floor (brushroll spins slower), Lift-Away (detached cleaning). Settings: Brushroll on/off for delicate rugs; LED lights auto-on when powered.

Maintenance indicators: Check filter light when filters need cleaning; empty dust cup when full.

Cleaning Modes

Three primary cleaning modes for different surfaces.

Carpet Mode: Auto-adjusts brushroll height; use for medium to high-pile carpets.
Hard Floor Mode: Slower brushroll speed; use for wood, tile, laminate.
Lift-Away Mode: Detach pod for stairs, upholstery, ceilings, and above-floor areas.

Tip: Use brushroll off switch for delicate area rugs or fringe.

Maintenance & Care

Regular maintenance ensures optimal performance.

Empty dust cup: Press release button; empty after each use.
Clean filters: Rinse HEPA and foam filters monthly; air dry 24 hours.
Clear brushroll: Remove debris from brushroll weekly; cut tangled hair with scissors.
Check hose/wand: Remove clogs with long object.
Inspect belt: Replace if stretched or damaged (every 6-12 months).

WARNING! Unplug before maintenance. Do not use wet filters.

Accessories

Included attachments enhance cleaning versatility.

Accessory	Use
Crevice Tool	Cleans tight spaces, corners, between cushions
Dusting Brush	Dusts blinds, lampshades, shelves
Pet Multi-Tool	Removes pet hair from furniture and stairs
Upholstery Tool	Cleans sofas, chairs, car interiors
Storage Caddy	Holds attachments on vacuum body

Safety Information

Read all instructions before use. Keep away from children.

CAUTION! Do not use outdoors or on wet surfaces. Do not pick up flammable materials. Unplug when not in use. Do not block vents. Store in dry place.

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
Vacuum won't turn on	Power cord/outlet	Check plug; try different outlet; ensure power button pressed.
Loss of suction	Full dust cup/clog	Empty dust cup; check hose/wand for clogs; clean filters.
Brushroll not spinning	Debris/belt	Clear brushroll of debris; check/replace belt.
Vacuum overheats	Clog/filters	Unplug; clear clogs; clean filters; let cool 60 minutes.
Lift-Away not detaching	Release button	Press release button firmly; check for obstructions.

Reset: Unplug for 60 minutes; plug back in.

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