Clean your Dyson V15 after every use to keep suction strong and extend the machine's life

The Dyson V15 loses suction when dust clogs the filter, the bin fills past the line, or hair wraps around the brush head. Cleaning takes about 10 minutes and requires no tools beyond warm water and a soft brush. You'll do this after every few uses—not once a season—because the V15 works harder than upright vacuums and its filters clog faster.

The three parts that need regular attention are the filter (which catches fine dust), the dust bin (which holds large debris), and the brush head (which tangles with hair and pet fur). Each one affects suction differently, and skipping any of them will make the vacuum feel weak within a week.

Key Takeaways

  • Empty the dust bin after every use by pressing the release button at the bottom and tapping debris into a trash can.
  • Wash the filter under cool running water once a week, never in hot water or the dishwasher, and let it dry completely before reinstalling.
  • Clear hair from the brush head by hand or with scissors every time you vacuum, because wrapped hair reduces brush spin and suction.
  • Never use a vacuum cleaner on the filter itself—water and a soft brush are the only safe cleaning methods.

Empty the dust bin after every session

Press the red release button at the bottom of the dust bin (the clear plastic container on the back of the vacuum). The bin will drop away from the motor head. Hold it over a trash can and press the button again—a flap opens at the bottom and debris falls out. Tap the sides of the bin to loosen stubborn dust.

Do not squeeze or compress the bin to force dust out, because you may crack the plastic or damage the seal that keeps dust from escaping during use. If dust sticks to the sides, a light tap on the outside of the bin works better than pressure from inside.

Once the bin is empty, look inside the motor head (the part the bin attaches to) for loose debris. Wipe it with a dry cloth if you see dust buildup. Reattach the bin by sliding it back onto the motor head until you hear a click.

Wash the filter weekly with cool water

The filter is a pleated cylinder inside the motor head. To reach it, remove the dust bin, then twist the filter counterclockwise and pull it straight out. You'll see a small red button on top of the filter—that's the release mechanism, not something you press during cleaning.

Hold the filter under cool running water (not hot) and rinse from the top down, letting water flow through the pleats. Use a soft brush—an old toothbrush works—to gently brush the outside of the pleats if dust is stuck. Never scrub hard or use a vacuum cleaner on the filter, because both damage the pleated material and reduce its ability to catch fine dust.

Shake off excess water and stand the filter upright on a clean cloth to dry completely. This takes at least 4 hours, and overnight is safer. Do not reinstall a damp filter, because moisture can damage the motor and reduce suction. Once dry, twist the filter clockwise back into the motor head until it stops—do not force it.

Remove hair from the brush head after each use

The brush head is the rotating cylinder at the bottom of the vacuum. Hair and pet fur wrap around it during use and slow the brush spin, which cuts suction in half. Check it after every vacuuming session, especially if you have pets or long hair in your home.

Flip the vacuum over so the brush head faces up. Pull wrapped hair away by hand—most comes off easily. For hair that's wound tight, use small scissors to cut it away from the brush. Work slowly and cut parallel to the brush so you don't nick the bristles. Once the brush is clear, flip the vacuum back over and you're done.

If the brush bristles look matted or bent, the brush head may need replacement. Dyson brush heads last about a year with regular use. You can order a replacement from Dyson's website or through retailers that sell Dyson parts.

Check the hose and wand for blockages monthly

Suction loss sometimes comes from a clog in the hose or extension wand, not the filter or brush. Hold the hose up to a light and look through it—you should see light on the other end. If you see a blockage, straighten a wire coat hanger and push it through gently to dislodge the clog.

For the extension wand, do the same thing: look through it, and if it's blocked, use the wire hanger to clear it. Never use a vacuum cleaner to suck out a blockage, because the suction can damage the hose or wand walls.

Once the hose and wand are clear, rinse them under cool running water and shake out excess water. Stand them upright to dry before reattaching to the motor head.

Clean the motor head and dust bin exterior monthly

Dust settles on the outside of the motor head and bin, which doesn't affect suction but looks dirty. Wipe both with a dry cloth or a slightly damp cloth (not wet). Pay attention to the seams where the bin attaches, because dust collects there and can prevent a tight seal.

If the motor head has visible dust inside the attachment point where the bin clicks on, use a dry cloth to wipe it out. A loose seal lets dust escape during vacuuming and reduces suction.

What to do if suction is still weak after cleaning

If you've emptied the bin, washed the filter, cleared the brush head, and checked the hose, but suction is still weak, the motor may be failing or the filter may have a tear. Hold the filter up to a light and look for small holes or tears in the pleated material. If you see any, the filter needs replacement.

If the filter looks intact, the motor may need service. Contact Dyson support through their website or the phone number on your warranty card. Dyson V15 vacuums come with a standard warranty that covers motor defects, though warranty length varies by region.

Frequently Asked Questions

Can I wash the filter in hot water or the dishwasher?

No. Hot water and dishwashers damage the pleated material and the filter's ability to catch dust. Use only cool running water and a soft brush. Let the filter dry completely before reinstalling—at least 4 hours, preferably overnight.

How often should I replace the filter?

With weekly washing, the filter lasts about 12 months. If you vacuum daily or have pets, replace it every 6 to 9 months. If the filter tears or stops letting water flow through easily after washing, it's time for a replacement.

What happens if I don't empty the bin?

Suction drops sharply once the bin reaches the fill line. The vacuum will feel weak even though the filter is clean. Empty the bin after every use to keep suction consistent. If you ignore the fill line, dust can escape into the motor and cause damage.

Is it normal for the filter to look gray or brown after washing?

Yes. Dust stains the filter material even after rinsing. As long as water flows through it easily during washing, the filter is clean enough to use. If water pools on top of the filter instead of flowing through, wash it again or replace it.

Can I use a regular brush to clean the filter?

A soft brush like an old toothbrush is fine. Avoid stiff brushes or wire brushes, which can tear the pleats. The goal is to loosen dust gently, not scrub hard.