Shark FLEX Duoclean HV394QBL Vacuum Cleaner Manual

The Shark FLEX Duoclean HV394QBL is a versatile corded stick vacuum featuring DuoClean PowerFins technology, a flexible wand, LED headlights, Anti-Allergen Complete Seal, and a large-capacity dust cup. It converts to a handheld vacuum and includes various attachments for whole-home 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. Cleaning Modes 8. Maintenance & Care 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Motorized floor nozzle with DuoClean PowerFins, Flexible wand, LED headlights, Anti-Allergen Complete Seal system, Large-capacity dust cup, Handheld mode, On-board accessory storage.

Feature	Description
DuoClean PowerFins	Combines bristle brush and soft roller for debris on hard floors and carpets
Flexible wand	Bends to clean under furniture without moving items
LED headlights	Illuminates hidden debris under furniture and in dark corners
Anti-Allergen Complete Seal	Traps 99.9% of dust and allergens inside the vacuum
Large dust cup	Holds more debris for fewer interruptions
Convertible design	Transforms from stick vacuum to handheld vacuum in seconds
On-board storage	Holds crevice tool and pet multi-tool on the vacuum
POWER/SURFACE switch	Selects between hard floor and carpet cleaning modes
RELEASE button	Detaches handheld pod from wand
DUST CUP RELEASE	Opens dust cup for emptying

Assembly & Setup

Unpack and inspect all contents. Assemble before first use.

Attach wand: Insert wand into floor nozzle until it clicks securely.
Connect handheld pod: Slide handheld pod onto top of wand until it clicks.
Install accessories: Attach crevice tool and pet multi-tool to on-board storage clips.
Plug into wall outlet: Ensure cord is fully unwound and outlet is 120V.

WARNING! Ensure vacuum is unplugged during assembly. Do not force connections.

First-Time Use

Plug in vacuum; select appropriate cleaning mode.

Select surface setting: Use POWER/SURFACE switch for hard floor or carpet.
Begin cleaning: Press power button on handheld pod; vacuum will start.
Adjust wand: Use flexible wand to clean under furniture without bending over.
Empty dust cup: Press RELEASE button to remove and empty when full.

CAUTION! Keep hair, loose clothing, and fingers away from brush roll and openings.

Specifications

Model: HV394QBL Shark FLEX DuoClean.
Technology: DuoClean PowerFins with Anti-Allergen Complete Seal.
Power Source: Corded, 120V, 60Hz.
Dust Cup Capacity: 0.9 dry quarts.
Attachments Included: Crevice tool, Pet Multi-Tool, On-board storage.
Warranty: 5-year limited warranty (see manual for details).
Weight: 12.3 lbs (assembled).
Cord Length: 30 feet.

Controls and Settings

Main controls located on handheld pod and floor nozzle.

Handheld Pod: POWER button, RELEASE button (to detach from wand), DUST CUP RELEASE latch.

Floor Nozzle: POWER/SURFACE switch (Hard Floor/Carpet), LED headlights (auto-on).

Settings: Hard Floor mode (for bare floors and low-pile rugs), Carpet mode (for carpets and area rugs). Accessory use: Detach handheld pod to use attachments for above-floor cleaning.

Using Attachments

Convert to handheld vacuum for detailed cleaning.

Detach handheld pod: Press RELEASE button on pod and lift off wand.
Attach tool: Connect crevice tool or pet multi-tool to pod nozzle.
Clean: Use for upholstery, stairs, ceilings, and tight spaces.
Reattach: Slide pod back onto wand until it clicks to return to stick mode.

Tip: Store tools on-board for quick access during cleaning.

Cleaning Modes

Two cleaning modes optimized for different surfaces.

Hard Floor Mode: Activates soft roller to capture large debris and fine dust on hard surfaces.
Carpet Mode: Engages bristle brush roll to deep clean carpets and remove embedded dirt.
Flexible Wand: Bend wand to clean under furniture without moving items.
LED Headlights: Automatically illuminate to reveal hidden dust and debris.

WARNING! Do not use on wet surfaces. Avoid vacuuming hard objects that could damage brush roll.

Maintenance & Care

Regular maintenance ensures optimal performance.

Empty dust cup after each use. Check and clean brush roll monthly for hair and debris. Wash dust cup and filters every 3 months (air dry completely before reuse). Inspect cord for damage.

CAUTION! Unplug vacuum before performing any maintenance. Do not use water on electrical parts.

Regulatory Information

This appliance complies with FCC Part 15 Subpart B. Operation is subject to conditions: (1) device may not cause harmful interference, (2) device must accept any interference received. Copyright © SharkNinja Operating LLC. Shark, DuoClean, and Anti-Allergen Complete Seal are trademarks. For support, visit sharkclean.com or call 1-800-798-7398.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Vacuum won't turn on	Power cord not plugged in	Plug into working outlet; check household fuse/circuit breaker.
Loss of suction	Full dust cup or clog	Empty dust cup; check hose, wand, and nozzle for blockages.
Brush roll not spinning	Hair/debris wrap	Unplug vacuum; remove debris from brush roll ends.
Vacuum shuts off	Overheating	Turn off and unplug; let cool for 60 minutes; check for clogs.
LED lights not working	Connection issue	Ensure wand and pod are fully clicked into place.

Reset: Unplug for 60 minutes if unit overheats.

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