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Filter not sealed

Filter not sealed on screen — Filter not correctly fitted

Dyson · Gen5Detect Vacuum

What does Filter not sealed mean?

The LCD screen shows 'Filter not sealed' with an alert icon. This indicates that the filter is not securely in place, which can prevent the vacuum from operating correctly or efficiently.

Common Causes

  • The filter was not twisted fully clockwise into its locked position.
  • The filter was incorrectly aligned when being reattached to the machine.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Twist the filter anti-clockwise and pull it away from your machine.

  2. 2

    Realign the filter correctly onto the machine's body.

  3. 3

    Twist the filter clockwise firmly until it clicks and locks into place.

  4. 4

    Check the screen to ensure the alert message has cleared.

Browse all codes in this manual (9)
Verified technical data. Last updated: April 2026

Related Faults

3 pulses, Low run time (amber)Machine pulses 3 times and 'Low run time' (amber) on screen — Battery needs chargingBlue LEDs flashBlue LEDs flashing on battery — Machine is chargingBlue LEDs solid for 5s, 100% on displayBlue LEDs solid for 5 seconds and 100% on display — Battery fully charged
Source: Dyson Gen5Detect Vacuum
Open Manual (Page 7)Search more codes in this manual