Empty the dust cup and rinse the filter after every use
The Shark Navigator Lift-Away empties from the bottom of the main unit. Press the release button on the dust cup (usually located near the handle) and twist or pull downward to detach it. Hold it over a trash bin and press the bottom latch to open the cup door and dump the debris.
The filter needs attention after each use to keep suction strong. Most Shark Navigator models have a foam or pleated filter located inside the main unit. Remove it by twisting or unclipping—your manual will show the exact method for your model. Tap the filter gently over a trash can to dislodge loose dust, then rinse it under cool running water. Let it air-dry completely (at least 30 minutes) before reinstalling. Never use hot water or put a wet filter back in the vacuum.
If you notice suction dropping even after cleaning the filter, the filter may need replacement. Shark Navigator filters typically last 6 to 12 months depending on use. You can order replacements directly from Shark or through major retailers using your model number.
Key Takeaways
- Empty the dust cup and rinse the filter after every use to maintain suction and prevent motor strain.
- Always let the filter air-dry completely before putting it back in the vacuum to avoid mold and odors.
- Clean the brush roll monthly and remove hair and debris wrapped around it to prevent clogs.
- Check the hose and attachment ports for blockages if suction suddenly drops, as clogs are often the culprit.
- Replace the filter every 6 to 12 months and the brush roll every 12 to 18 months, depending on how often you vacuum.
Clean the brush roll monthly to prevent hair tangles and clogs
The brush roll (the spinning bristle bar at the bottom of the vacuum head) collects hair, string, and fibers that wrap around it and reduce cleaning power. Unplug the vacuum and flip it over to access the brush roll. Most Shark Navigator models have a release button or clip on either side of the brush roll housing—press or slide these to remove the brush roll.
Use scissors or a seam ripper to cut away any hair or string wrapped around the bristles. Wipe the brush roll with a damp cloth to remove dust, then dry it completely. While the brush roll is out, also wipe the inside of the brush roll housing with a damp cloth to remove accumulated dust and debris. Reinstall the brush roll by sliding it back into place until you hear or feel it click or lock.
If the bristles are matted down, frayed, or no longer spin freely, the brush roll needs replacement. Shark Navigator brush rolls typically last 12 to 18 months. You can order a replacement using your model number.
Check the hose and attachment ports for blockages
A sudden loss of suction often means a clog somewhere in the airway. Start by detaching the hose from both the main unit and the lift-away canister. Hold it up to a light source and look through it—you should see light on the other end. If you see a blockage, use a straightened wire coat hanger or a plumbing snake to push the clog out, or run warm water through the hose to dissolve it.
Next, check the ports where the hose connects to the main unit and the canister. Debris can collect in these openings and restrict airflow. Use a dry cloth or an old toothbrush to clean out any dust or hair from the ports. Also inspect the connection where the lift-away canister attaches to the main unit—make sure the seal is tight and free of debris.
If you have attachments (crevice tool, brush, upholstery tool), check the ports where they connect as well. A loose or partially inserted attachment can cause suction loss even if nothing is actually clogged.
Clean the lift-away canister and its connection points
The lift-away canister is the detachable upper section that lets you clean stairs and furniture. After emptying the dust cup, wipe the inside walls of the canister with a damp cloth to remove dust residue. Pay special attention to the bottom seams where dust accumulates.
The connection point where the canister locks onto the main unit can trap dust and hair. Unplug the vacuum, detach the canister, and use a damp cloth or soft brush to clean the male connector (the part on the main unit) and the female connector (the part inside the canister). Make sure both are completely dry before reattaching. A dirty connection can weaken suction and cause the canister to feel loose or unstable.
If the canister no longer seals tightly or feels wobbly when attached, the locking mechanism may be worn. Check your manual for the specific model to see if the latch can be adjusted or if the canister needs replacement.
Wash the dust cup and foam pre-filter monthly
The dust cup itself can hold onto odors and fine dust particles. Once a month, remove the dust cup and wash it with warm soapy water, then rinse and air-dry completely before reattaching. Some Shark Navigator models also have a foam pre-filter (a small foam piece separate from the main filter) that sits above the dust cup. Remove this, rinse it under cool water, and let it air-dry.
Never put a wet dust cup or pre-filter back into the vacuum. Moisture can damage the motor and create mold inside the unit. If either part feels damp, wait longer before reinstalling.
Store the vacuum in a dry location and check the power cord
Keep your Shark Navigator in a dry closet or storage area away from moisture and extreme heat. Humidity can damage the motor and cause rust inside the unit. Coil the power cord loosely (do not wrap it tightly around the vacuum body, as this can damage the cord over time) and find it with a velcro strap or loose tie.
Before each use, inspect the power cord for cuts, fraying, or exposed wires. If you see damage, do not use the vacuum—the cord will need replacement by a professional or through Shark's customer service. A damaged cord is a fire and shock hazard.
If the vacuum sits unused for more than a month, run it for a few seconds before storing it again. This helps dry out any moisture that may have accumulated inside.
When to call Shark customer service or a repair technician
If suction does not improve after you have emptied the dust cup, rinsed the filter, cleaned the brush roll, and checked for clogs, the motor or internal fan may be failing. Contact Shark customer service with your model number—they can walk you through additional troubleshooting or arrange a repair or replacement if the unit is still under warranty.
If the vacuum makes unusual grinding, squealing, or rattling sounds, or if it smells like burning plastic or rubber during use, stop using it when ready and unplug it. These are signs of motor damage or internal friction. Do not attempt to repair these issues yourself—contact Shark or a certified repair technician.
If the lift-away canister no longer locks securely, the latch mechanism may be broken. Shark can provide a replacement canister or direct you to an authorized repair center. Using the vacuum with a loose canister reduces suction and can be unsafe.
Frequently Asked Questions
How often should I replace the filter?
Most Shark Navigator filters last 6 to 12 months with regular use. If you vacuum daily or have pets, replace it every 6 months. If you vacuum a few times a week, 12 months is typical. If suction drops noticeably even after rinsing the filter, replacement is due sooner.
Can I wash the brush roll?
Yes. Remove the brush roll, rinse it under cool water to remove dust, and dry it completely before reinstalling. Do not soak it or use hot water. If the bristles are permanently matted or frayed, the brush roll needs replacement rather than cleaning.
What should I do if the vacuum smells bad?
Empty the dust cup, rinse the filter and pre-filter thoroughly, and wash the dust cup itself with warm soapy water. Let all parts air-dry completely. If the smell persists, the filter may be moldy—replace it. Never reinstall a wet filter, as moisture causes odors and mold growth.
Why did suction drop suddenly?
Check the dust cup first—it may be full. Then rinse the filter, clean the brush roll, and inspect the hose and connection ports for clogs. If none of these reveal a problem, the filter may need replacement, or the motor may be failing. Contact Shark if suction does not return after these steps.
Is it safe to use the vacuum with a wet filter?
No. A wet filter can damage the motor, cause mold growth inside the unit, and create electrical hazards. Always let the filter air-dry for at least 30 minutes before reinstalling. If you accidentally put a wet filter in, remove it when ready and let the unit dry for several hours before using it again.