Clean the dustbin after every run, and the filter once a week

The Shark Matrix robot vacuum needs two regular cleaning tasks to keep working well: emptying the dustbin and washing the filter. Empty the dustbin after each cleaning cycle — even if it does not look full, dust clogs the sensors and reduces suction. The filter should be rinsed under tap water once a week, or more often if you have pets or a carpeted home.

Do not wash the filter with soap. Tap water alone removes trapped dust. Let it air-dry completely before putting it back in the vacuum, which usually takes two to four hours. A wet filter will damage the motor and void your warranty.

Key Takeaways

  • Empty the dustbin after every cleaning run to prevent dust from clogging sensors and reducing suction power.
  • Rinse the filter with tap water once a week and let it air-dry completely before reinstalling it.
  • Clean the brush roll and side brush monthly by removing hair and debris by hand, and replace the brush roll every six to twelve months depending on use.
  • Wipe the sensors and charging contacts with a dry cloth every two weeks to keep the vacuum navigating and charging properly.
  • Check the wheels and bumper monthly for hair wraps and debris that slow movement or prevent the vacuum from detecting obstacles.

Remove hair from the brush roll and side brush monthly

Hair wraps around the main brush roll and the side brush, slowing the vacuum and reducing cleaning power. Check these parts once a month, or more often if you have long-haired pets or people in your home.

To clean the brush roll, press the release button on the bottom of the vacuum (check your manual for the exact location — it varies by model). The brush roll slides out. Use scissors or a seam ripper to cut away hair wrapped around the bristles, working along the length of the brush. Wipe it with a dry cloth and slide it back in until you hear it click.

The side brush is smaller and sits on the right side of the vacuum. It usually unscrews by hand — turn it counterclockwise. Remove hair the same way, then screw it back in clockwise until snug. Do not overtighten.

Replace the brush roll every six to twelve months

Even with regular cleaning, the brush roll bristles wear down and lose effectiveness. Most owners need to replace it every six to twelve months, depending on how often the vacuum runs and how much pet hair it encounters.

You will notice reduced suction or visible bristle damage before it stops working entirely. Order a replacement brush roll from Shark's website or a major retailer — they cost between $20 and $40. Installation is the same as removal: press the release button, slide out the old roll, and slide in the new one until it clicks.

Clean the sensors and charging contacts every two weeks

The Shark Matrix has sensors on the bottom and sides that detect obstacles, stairs, and dirt. Dust on these sensors causes the vacuum to miss spots or behave erratically. Wipe all visible sensors with a dry, lint-free cloth every two weeks.

The charging contacts — small metal dots on the bottom of the vacuum and on the dock — also need cleaning. Dust on these contacts prevents the vacuum from charging properly. Wipe them with a dry cloth as well. Never use water or cleaning solution on sensors or contacts.

Check the wheels and bumper for debris monthly

The wheels can pick up hair, string, and dust that slow the vacuum or prevent it from moving in a straight line. Flip the vacuum over once a month and look at both wheels. Remove any visible debris by hand or with tweezers.

The bumper — the rubber strip around the front edge — can also collect hair and dust. Wipe it with a dry cloth. If the bumper is cracked or peeling, contact Shark for a replacement part. A damaged bumper prevents the vacuum from detecting walls and furniture correctly.

Clean the dock and charging area

The dock collects dust and pet hair around the charging contacts and the opening where the vacuum sits. Wipe the dock with a dry cloth once a month, paying special attention to the metal contacts where the vacuum connects.

Keep the dock in a clear, level spot at least four feet away from stairs or obstacles. Vacuum the floor around the dock regularly — debris on the floor can be picked up by the wheels and tracked into the vacuum. If the dock is damaged or the contacts are corroded, contact Shark for a replacement.

What to do if suction drops suddenly

If the vacuum loses suction between regular cleaning cycles, check the dustbin first — it may be full even if it does not look it. Empty it completely and run a test cycle.

If suction is still weak, remove and rinse the filter, clean the brush roll, and wipe the sensors. These four steps solve most suction problems. If suction remains poor after all of these, the motor may be failing — contact Shark support with your model number and purchase date.

Frequently Asked Questions

Can I wash the filter with soap or in the dishwasher?

No. Soap leaves residue that damages the motor, and the dishwasher's heat warps the filter. Rinse it under tap water only, squeeze gently to remove excess water, and let it air-dry completely before reinstalling.

How do I know when to replace the side brush?

The side brush lasts longer than the main brush roll — usually twelve to eighteen months. Replace it when the bristles are visibly worn, bent, or missing, or when the vacuum stops cleaning the edges of rooms as well as it used to.

What if the vacuum will not dock or charge?

First, wipe the charging contacts on both the vacuum and the dock with a dry cloth. Make sure the dock is on a level floor and plugged in. If the vacuum still will not charge, try moving the dock to a different outlet. If it charges at the new outlet, the original outlet may be faulty.

Can I use a wet cloth to clean the sensors?

No. Water can damage the sensor electronics. Use a dry, lint-free cloth only. If a sensor is visibly corroded or cracked, contact Shark for a replacement part.

How often should I empty the dustbin if I have pets?

Empty it after every cleaning run, even if it looks half full. Pet hair clogs the dustbin faster than regular dust and reduces suction quickly. If the vacuum runs daily, you may need to empty it twice a day.