Shark Vertex IZ440 Series Vacuum Cleaner Manual

The Shark Vertex IZ440 Series is a powerful corded stick vacuum featuring DuoClean technology with a brushroll and soft roller, Anti-Hair Wrap technology, LED headlights, a large-capacity dust cup, and multiple cleaning modes. It includes a variety of attachments for versatile cleaning on carpets, hard floors, and above-floor surfaces. 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 Modes 6. Using Attachments 7. Cleaning & Maintenance 8. Emptying the Dust Cup 9. Care & Storage 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main vacuum body with motor, DuoClean floor nozzle, wand, handle with controls, dust cup, and accessory attachments.

FeatureDescription
DuoClean TechnologyCombination brushroll and soft roller for carpets and hard floors
Anti-Hair Wrap TechnologyPrevents hair tangles on the brushroll
LED HeadlightsIlluminates debris under furniture and in dark areas
Large Capacity Dust CupEasy-empty, no-touch dust cup with hygienic seal
Power CordLong cord for extended reach without unplugging
Cleaning ModesHard Floor, Carpet, and Boost modes for different surfaces
AttachmentsIncludes crevice tool, dusting brush, pet multi-tool, and upholstery tool
Wand ReleaseQuick-release button for converting to handheld vacuum
Handle ControlsPower button and mode selector on the handle
Washable FiltersFoam and felt filters for maintaining suction power

Assembly & Setup

Unpack all components and inspect for damage. Assemble before first use.

  1. Attach the wand: Insert the wand into the main vacuum body until it clicks into place.
  2. Attach the floor nozzle: Connect the DuoClean nozzle to the end of the wand until it locks.
  3. Attach the handle: Slide the handle onto the top of the wand and secure it.
  4. Plug into a standard 120V AC outlet.

WARNING! Ensure the vacuum is unplugged during assembly. Keep fingers away from moving parts.

First-Time Use

Plug in the vacuum and turn it on using the power button on the handle.

  1. Select cleaning mode: Use the mode button to choose Hard Floor, Carpet, or Boost.
  2. Begin cleaning: Push the vacuum forward and back in slow, overlapping strokes.
  3. Use attachments: Detach the wand to use handheld tools for above-floor cleaning.
  4. Empty dust cup: Press the release button to remove and empty the dust cup when full.

CAUTION! Do not use on wet surfaces or to pick up liquids. Keep hair, loose clothing, and fingers away from openings.

Specifications

Controls and Modes

Power button: Turns vacuum on/off. Mode button: Cycles through Hard Floor, Carpet, and Boost.

Cleaning Modes: Hard Floor (gentle suction for hard surfaces), Carpet (increased suction for carpets), Boost (maximum suction for deep cleaning).

LED indicators: Show current mode and filter maintenance reminders. Wand release button: Converts to handheld vacuum. Dust cup release: Button to detach dust cup for emptying.

Using Attachments

Attach tools directly to the handle or wand for above-floor cleaning.

  1. Turn off and unplug the vacuum before changing attachments.
  2. Press the wand release button to separate the handle from the floor nozzle.
  3. Connect desired attachment (crevice tool, dusting brush, etc.) to the handle.
  4. Turn on the vacuum and clean upholstery, stairs, ceilings, or tight spaces.

Tip: Use the pet multi-tool for removing pet hair from furniture and carpets.

Cleaning & Maintenance

Regular maintenance ensures optimal performance.

  1. Empty dust cup after each use or when full.
  2. Clean filters monthly: Remove foam and felt filters, rinse with water, and air dry completely before reinstalling.
  3. Check brushroll for debris: Turn off vacuum, remove nozzle, and clear any tangled hair or fibers.
  4. Inspect hose and wand for clogs: Detach and clear any blockages.

WARNING! Always unplug the vacuum before performing any maintenance. Do not use damaged parts.

Emptying the Dust Cup

Empty the dust cup when debris reaches the MAX fill line.

  1. Turn off and unplug the vacuum.
  2. Press the dust cup release button and lift the cup away from the vacuum.
  3. Hold over a trash can and press the bottom release to open the door, allowing debris to fall out.
  4. Close the door and reattach the dust cup until it clicks into place.

CAUTION! Empty dust cup outdoors or in a well-ventilated area to minimize dust exposure.

Care & Storage

Unplug and clean the vacuum before storing. Store in a cool, dry place.

CAUTION! Do not wrap the cord tightly around the vacuum; use the cord hooks. 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 rights reserved. For support, visit www.sharkclean.com or contact 1-800-798-7398.

Troubleshooting

SymptomPossible CauseCorrective Action
Vacuum won't turn onPower source/plugCheck outlet; ensure plug is secure; try a different outlet.
Loss of suctionFull dust cup/clogged filtersEmpty dust cup; clean filters; check hose and wand for clogs.
Brushroll not spinningDebris entanglementTurn off and unplug; remove nozzle and clear brushroll of hair and debris.
OverheatingClogged filters/blockageTurn off and let cool; clean filters and check for blockages in air path.
LED lights not workingBattery/connectionEnsure vacuum is plugged in; lights are powered by main unit.

Reset: Unplug for 60 seconds, then plug back in.

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

Shark Vertex IZ440 Series Vacuum Cleaner Manual © - All Rights Reserved 2025