Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your Shark Stratos IZ400EU Cordless Stick Vacuum Cleaner. The Shark Stratos IZ400EU is a powerful cordless vacuum featuring Clean Sense IQ technology, which detects invisible dirt and automatically adjusts suction power for optimal cleaning. It includes DuoClean + PowerFins Plus for superior hair pickup and anti-hair wrap technology to keep the brushroll clear. With Flexology, the vacuum bends for easy cleaning under furniture and compact storage. The removable battery offers up to 60 minutes of runtime, and the Anti-Allergen Complete Seal system captures dust and allergens.
Setup
1. Unpacking and Assembly
Carefully remove all components from the packaging. Ensure all parts are present before assembly. The main components include the handheld vacuum, wand, DuoClean PowerFins Plus floorhead, and battery.
- Insert the wand into the floorhead until it clicks securely into place.
- Insert the handheld vacuum into the top of the wand until it clicks securely into place.
- Ensure all connections are firm before use.

Image: The Shark Stratos IZ400EU vacuum cleaner fully assembled, ready for use.
2. Charging the Battery
The lithium-ion battery comes partially charged. Fully charge the battery before first use. The battery can be charged while attached to the vacuum or separately.
- To charge, connect the charger to the battery port. The charging indicator lights will illuminate.
- A full charge takes approximately 3.5 hours.
- The battery display on the handheld unit shows the charge level.

Image: A hand holding the vacuum cleaner, showing the digital display indicating battery charge percentage during charging.
Operating Instructions
1. Power On/Off and Suction Modes
- Press the Power button to turn the vacuum on or off.
- Select desired suction mode:
- ECO Mode: For everyday cleaning and maximum runtime (up to 60 minutes with non-motorized attachment).
- Clean Sense IQ Mode: Automatically detects dirt and adjusts suction power as needed. An indicator light on the floorhead will change intensity.
- Boost Mode: For increased suction on tough messes.

Image: The vacuum cleaner's floorhead with purple light indicating the Clean Sense IQ feature detecting and cleaning dirt particles on a hard floor.
2. Using Flexology
The Flexology wand allows you to bend the vacuum to easily clean under low-lying furniture without bending over. Press the Flexology release button on the wand to articulate the joint.

Image: A person using the Shark Stratos vacuum cleaner with the Flexology wand bent to clean under a sofa.
3. Using Attachments
The vacuum converts into a handheld unit for versatile cleaning. Attachments can be used directly on the handheld vacuum or on the end of the wand.
- Crevice Tool: For tight spaces, corners, and edges.
- Multi-Surface Tool: For upholstery, car interiors, and delicate surfaces.
- Anti-Allergen Brush: Designed to remove fine dust and allergens from surfaces.

Image: The Shark Stratos vacuum in handheld mode, shown with various cleaning attachments for versatile use.
Maintenance
1. Emptying the Dust Cup
Empty the dust cup after each use or when debris reaches the MAX fill line.
- Ensure the vacuum is powered off.
- Press the dust cup release latch and remove the dust cup from the handheld vacuum.
- Hold the dust cup over a trash bin and press the empty button to open the bottom flap.
- Close the flap and reattach the dust cup to the handheld vacuum.
2. Cleaning Filters
Regularly clean the pre-motor and post-motor (HEPA) filters to maintain optimal suction power. Rinse with cold water only and allow to air dry completely for at least 24 hours before reinstalling.
- Pre-Motor Filters: Located inside the dust cup. Clean monthly.
- Post-Motor (HEPA) Filter: Located at the base of the handheld vacuum. Clean annually.

Image: A diagram illustrating the Shark Stratos Anti-Allergen Complete Seal system, showing how it captures and traps dust and allergens within the vacuum.
3. Cleaning the Brushrolls (Anti-Hair Wrap)
The DuoClean PowerFins Plus floorhead features Anti-Hair Wrap technology, which actively removes hair from the brushroll. Periodically check the brushrolls for any remaining debris or blockages.
- Ensure the vacuum is powered off.
- To access the brushrolls, open the brushroll garage by sliding the release buttons.
- Remove any debris or tangled hair. The PowerFins brushroll is designed to be self-cleaning, but occasional inspection is recommended.
- Close the brushroll garage securely.

Image: A close-up view of the Shark Stratos DuoClean PowerFins Plus brushroll, highlighting the anti-hair wrap feature.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Vacuum not picking up debris or no suction. | Dust cup full; filters clogged; blockage in nozzle, hose, or wand; brushrolls obstructed. | Empty dust cup; clean filters; check for and clear blockages; remove any obstructions from brushrolls. |
| Vacuum turns off on its own. | Overheating; battery low. | Check for blockages and clean filters; allow vacuum to cool for at least 45 minutes; recharge battery. |
| Brushrolls not spinning. | Floorhead blocked; brushroll garage not closed properly; vacuum in handheld mode. | Clear any blockages from the floorhead; ensure brushroll garage is securely closed; ensure vacuum is in stick mode for brushroll operation. |
| Battery not charging. | Charger not properly connected; battery too hot/cold. | Ensure charger is fully plugged into outlet and battery; charge battery at room temperature. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | IZ400EU |
| Brand | Shark |
| Power (Watts) | 309 Watts |
| Voltage | 25.2 Volts |
| Battery Type | Lithium-ion |
| Runtime | Up to 60 minutes (in ECO mode with non-motorized attachment) |
| Charge Time | Approximately 3.5 hours |
| Filter Type | HEPA Filter |
| Item Weight | 5.11 Kilograms |
| Dimensions (L x W x H) | 29L x 69W x 20H centimeters |
| Special Features | Anti-Hair Wrap Plus, Anti-Allergen, Odor Technology, Clean Sense IQ, Lightweight, Cordless, Compact, Flexible, Duo Clean LED Lights |
| Surface Recommendation | Carpet, Hard Floors, Indoor, In-car, All Floors |
| Noise Level | 70 Decibels |
Warranty
Your Shark Stratos IZ400EU vacuum cleaner comes with a 5-year limited warranty. The battery is covered by a 2-year warranty. To activate your warranty, please register your product with Shark after purchase. Keep your proof of purchase for warranty claims.

Image: A graphic displaying a '5 Years Warranty' badge, indicating the product's warranty period.
Support
For further assistance, product registration, or to purchase replacement parts and accessories, please visit the official Shark website or contact Shark customer service. Refer to the contact information provided in your product packaging or on the official Shark website for your region.
Online Support: www.sharkclean.com





