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Dyson switching itself off? Check the filter

18.10.2026 Blog / News

If your Dyson vacuum cuts out on its own or starts pulsing, the problem is often not the motor but the filter. Here’s why it happens and how to wash the filter properly at home.

Why the vacuum switches off

A clogged filter doesn’t let enough air through. The motor works harder, overheats, and the thermal cut-out kicks in — the vacuum switches off to protect itself.

Why the vacuum switches off.

1. Wash the filter once a month

Take the filter out and rinse it in cold water only — no detergent and never in the dishwasher. Keep rinsing until the water runs clear.

Clogged Dyson filter

1. Wash the filter once a month.

2. Dry it for at least 24 hours

Leave the filter to dry at room temperature. Only put it back when it’s completely dry — a damp filter can damage the motor.

2. Dry it for at least 24 hours.

3. Don’t forget the rear filter

Many models also have a filter at the back of the body. Check and clean it too, following the manufacturer’s instructions.

3. Don’t forget the rear filter.

If that doesn’t help

If suction is still weak after washing and drying, or the vacuum keeps switching off, the cause may be the battery or the motor. At our workshop we take the vacuum apart, find the cause and tell you the price before the repair. If you have the repair done with us, the diagnosis is free; if you decline the repair, it costs €20.


Tips

  • Empty the bin before washing the filter, so the dirt doesn’t end up back in it.
  • Don’t dry the filter on a radiator or with a hair dryer.

Also read: 3 signs your Dyson needs a technician.
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