Shark Navigator Pet Plus NV251 Series Vacuum Cleaner Manual

The Shark Navigator Pet Plus NV251 Series is a lightweight, upright vacuum cleaner designed for homes with pets. It features a Lift-Away® pod for portable cleaning above the floor, an Anti-Allergen Complete Seal™ with a HEPA filter, a motorized brushroll for deep carpet cleaning and pet hair removal, a large-capacity dust cup, 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. Cleaning Modes 8. Maintenance & Care 9. Safety Information 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Upright vacuum body, Lift-Away® pod, Motorized brushroll, Dust cup with HEPA filter, Hose, Wand, and various cleaning attachments.

FeatureDescription
Lift-Away® TechnologyDetachable pod for portable cleaning above floors and stairs
Anti-Allergen Complete Seal™Sealed system with HEPA filter to trap 99.9% of dust and allergens
Motorized Pet Power BrushDeep cleans carpets and removes embedded pet hair
Large Capacity Dust CupEasy-to-empty, no bags required
Fingertip ControlsOn-board controls for power, brushroll on/off, and suction settings
Under-Appliance WandCleans under furniture and appliances
Crevice ToolFor tight spaces and corners
Dusting BrushFor delicate surfaces and dusting
Pet Multi-ToolCombines bristle brush and upholstery tool for pet hair
Storage CaddyHolds all attachments on the vacuum

Assembly & Setup

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

  1. Attach the wand: Insert the wand into the hose port on the vacuum body until it clicks.
  2. Connect the hose: Attach the hose to the wand and the pod inlet.
  3. Install the floor nozzle: Slide the motorized floor nozzle onto the vacuum body until it locks.
  4. Attach accessories: Store attachments on the onboard caddy.
  5. 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

Before cleaning, perform a quick check of all connections and settings.

  1. Power on: Press the power button on the handle.
  2. Select mode: Use the floor selector switch for carpets or hard floors.
  3. Adjust suction: Use the suction control slider for different surfaces.
  4. Engage brushroll: Press the brushroll on/off button for carpet cleaning.
  5. For above-floor cleaning: Press the Lift-Away release button to detach the pod.

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

Specifications

Controls and Settings

Main controls located on the handle and body. Handle: Power button, Suction control slider. Body: Brushroll on/off button, Floor selector switch (for carpet/hard floor), Lift-Away release button.

Settings Overview: Power: Turns vacuum on/off. Suction Control: Adjusts suction power (Low/High). Brushroll: Engages/disengages motorized brushroll for carpets. Floor Selector: Raises/lowers nozzle for different floor types. Lift-Away: Releases pod for portable cleaning.

Using Attachments

Attachments connect to the hose or wand for specialized cleaning.

  1. Detach the pod: Press the Lift-Away button and lift the pod away.
  2. Select attachment: Choose tool for the cleaning task (e.g., Crevice Tool for corners).
  3. Connect: Insert attachment into the end of the hose or wand.
  4. Clean: Use the handheld pod to clean above floors, furniture, stairs, etc.
  5. Reattach: Return pod to the main body until it clicks into place.

Tip: Store attachments on the onboard caddy for easy access.

Cleaning Modes

Two primary cleaning modes: Upright and Lift-Away.

  1. Upright Mode: For floor cleaning. Use floor selector for surface type.
  2. Lift-Away Mode: For above-floor cleaning. Detach pod and use with hose and attachments.
  3. Motorized Brushroll: For deep carpet cleaning and pet hair removal (ensure brushroll is on).
  4. Hard Floor Setting: Raise floor selector to prevent brushroll contact on delicate floors.
  5. Suction Settings: Use high suction for deep cleaning, low for delicate rugs or drapes.

WARNING! Do not use the motorized brushroll on hard floors without raising the selector; it may cause damage.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

Empty Dust Cup: Press release button and empty when full. Clean Filters: Rinse HEPA filter and foam filter every 3 months (air dry completely). Check Brushroll: Regularly remove hair and debris wrapped around brushroll. Inspect Hose & Nozzle: Clear any blockages. Store Properly: Store in a dry place, wrap cord around cord hooks.

CAUTION! Unplug vacuum before performing any maintenance. Ensure all parts are completely dry before reassembly.

Safety Information

Read all instructions before use. Keep vacuum away from water and wet surfaces. Do not use with damaged cord or plug. Do not pick up hot ashes, coals, toxic or flammable materials. Do not use without filters installed. Keep vacuum moving while in use to avoid damaging carpets.

Regulatory Information

This appliance complies with FCC Part 15. Changes not approved by SharkNinja may void user authority. Copyright © SharkNinja Operating LLC. Shark, Navigator, Lift-Away, and Anti-Allergen Complete Seal are trademarks of SharkNinja Operating LLC. For support, visit sharkclean.com or contact 1-800-798-7398.

Troubleshooting

SymptomPossible CauseCorrective Action
Loss of suctionFull dust cup, clogged filter or hoseEmpty dust cup; check and clean filters; clear hose or nozzle blockage.
Brushroll not spinningObstruction, belt issue, or mode settingClear debris from brushroll; check belt for wear; ensure brushroll is turned on.
Vacuum won't turn onPower source, cord, or internal faultCheck outlet and plug; inspect cord for damage; contact customer service.
Loud noise or burning smellBlockage or motor issueImmediately turn off and unplug; check for and clear obstructions.
Pet hair not picking upFull dust cup, clogged brushrollEmpty dust cup; clean brushroll of wrapped hair; use Pet Power Brush attachment.

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

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

Shark Navigator Pet Plus NV251 Series Vacuum Cleaner Manual © - All Rights Reserved 2025