Shark SharkFLEX HV394Q Series Vacuum Cleaner Manual

The Shark SharkFLEX HV394Q Series is a versatile corded stick vacuum cleaner featuring DuoClean PowerFins technology, Anti-Allergen Complete Seal, LED headlights, a large-capacity dust cup, multiple cleaning modes (floor, above-floor, handheld), a flexible wand, and various attachments for comprehensive 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 & Techniques 8. Maintenance & Care 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Main vacuum body with motor, DuoClean PowerFins floor nozzle, flexible wand, handheld pod, dust cup with Anti-Allergen seal, LED headlights, power cord, and accessory attachments.

FeatureDescription
DuoClean PowerFinsDual-brushroll system for carpets and hard floors
Anti-Allergen Complete SealTraps 99.9% of dust and allergens inside the vacuum
LED HeadlightsIlluminates dark areas under furniture
Flexible WandBends to clean under and around obstacles
Large Capacity Dust CupEasy-empty, bagless design
Multiple Cleaning ModesFloor, above-floor, and handheld configurations
POWER ButtonTurns vacuum on/off
Mode SelectorSwitches between floor and above-floor cleaning
Release ButtonsFor detaching wand and handheld pod
Accessory StorageCrevice tool, dusting brush, upholstery tool included

Assembly & Setup

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

  1. Attach the wand: Insert the wand into the main vacuum body until it clicks.
  2. Attach the floor nozzle: Connect the DuoClean nozzle to the wand end.
  3. Install accessories: Store tools on the provided caddy or dock.
  4. Plug into a standard 120V AC outlet.

WARNING! Ensure the vacuum is unplugged during assembly. Handle with care to avoid pinching fingers.

First-Time Use

Plug in the vacuum; follow these steps for initial operation.

  1. Select cleaning mode: Use the mode selector to choose FLOOR or ABOVE-FLOOR.
  2. Power on: Press the POWER button; the LED headlights will illuminate.
  3. Adjust suction: Use the suction control slider (if equipped) for different surfaces.
  4. Empty dust cup: After first use, press the release to empty the cup.

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

Specifications

Controls and Settings

Main controls located on the vacuum body and handle.

On-Body Controls: POWER button, Mode Selector (Floor/Above-Floor), Suction Control slider, Dust Cup Release button.

Handle Controls: Wand Release button, Power trigger (on some models).

Settings: Floor mode for carpets and hard floors; Above-floor mode for wand and handheld cleaning; Suction control for adjusting power; LED headlights auto-on with power.

Using Attachments

Accessories for specialized cleaning: crevice tool, dusting brush, upholstery tool, pet multi-tool.

  1. Detach wand or handheld pod: Press the release button to separate.
  2. Connect attachment: Insert tool into the end of the wand or handheld pod.
  3. Select Above-Floor mode: Use the mode selector for wand/handheld cleaning.
  4. Power on and clean.

Tip: Store attachments on the dock or caddy for easy access.

Cleaning Modes & Techniques

Optimize cleaning for different surfaces and areas.

  1. Floor Mode: For carpets and hard floors. Use slow, overlapping passes.
  2. Above-Floor Mode: For stairs, furniture, ceilings. Attach tools as needed.
  3. Handheld Mode: Detach the pod for spot cleaning and tight spaces.
  4. Flexible Wand: Bend the wand to clean under furniture and around obstacles.
  5. LED Headlights: Automatically illuminate dark areas for thorough cleaning.

WARNING! Do not vacuum large objects, liquids, or hot ashes. Avoid vacuuming cords.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

  1. Empty dust cup: Press release button; empty after each use or when full.
  2. Clean filters: Rinse foam and felt filters monthly; air dry completely before reinserting.
  3. Clear brushrolls: Remove debris from DuoClean brushrolls regularly.
  4. Check for blockages: Inspect hose, wand, and nozzles if suction decreases.
  5. Store properly: Use dock or hang on wall; wrap cord around cord hooks.

CAUTION! Unplug before maintenance. Do not use damaged filters or 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/outletEnsure plug is securely in outlet; check circuit breaker.
Loss of suctionFull dust cup/clogEmpty dust cup; check hose, wand, and nozzle for blockages.
Brushroll not spinningDebris/tangleUnplug and clear hair or debris from brushroll.
OverheatingClogged filter/full cupClean filters; empty dust cup; let vacuum cool for 60 minutes.
Unusual noiseForeign objectUnplug and inspect for objects in brushroll or hose.

Reset: Unplug for 60 minutes if overheating occurs.

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

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