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Dyson V12 Detect Slim Absolute: filter wash alert stays on

Dyson V12 Detect Slim Absolute filter wash alert stays on: use the checks below to verify whether the alert comes from a dirty, damp or incorrectly seated filter before ordering a part.

Check your full model number before ordering.
Manufacturer sources consulted

Parts

Parts and accessories for Dyson Vacuum cleaner

Compare the documented references, including 971517-01. Open the part details to check the complete model code, then view the retailer’s offer.

971517-01Genuine part

V12 Detect Slim replacement filter

Genuine replacement filter explicitly listed by Dyson for V12 Detect Slim, Absolute and Extra cordless vacuums.

Buy from eSparesAffiliate link · UK delivery; check postcode and delivery options with eSpares.
View part · 971517-01

Dyson's official support material for Dyson V12 Detect Slim Absolute covers “filter wash alert stays on” and the user-accessible checks used below. What to distinguish: verify whether the alert comes from a dirty, damp or incorrectly seated filter Safe check: remove the filter as documented, rinse with cold water only when permitted, air-dry fully and lock it back into its indexed position Stop for a burning smell, hot or damaged battery, liquid ingress, exposed wire or a fault that returns after one official retest.

Before checking Dyson Vacuum cleaner

  • Switch off and unplug, or remove the battery only where the manual permits it. Keep water away from motors, contacts and non-washable filters.

What this symptom can mean on Dyson Vacuum cleaner

What this exact symptom meansDyson V12 Detect Slim Absolute filter wash alert stays on: use the checks below to verify whether the alert comes from a dirty, damp or incorrectly seated filter before ordering a part.
What to rule out firstverify whether the alert comes from a dirty, damp or incorrectly seated filter

3 checks for Dyson Vacuum cleaner, starting with Make the appliance safe

  1. Make the appliance safe

    Switch off and unplug, or remove the battery only where the manual permits it. Keep water away from motors, contacts and non-washable filters.

  2. Run the official user check

    remove the filter as documented, rinse with cold water only when permitted, air-dry fully and lock it back into its indexed position

  3. Retest once and decide

    verify whether the alert comes from a dirty, damp or incorrectly seated filter

When to stop checking Dyson Vacuum cleaner

  • Stop for a burning smell, hot or damaged battery, liquid ingress, exposed wire or a fault that returns after one official retest.

Next step

After checking Dyson Vacuum cleaner: repair, part or service?

Treat “Dyson V12 Detect Slim Absolute: filter wash alert stays on” as a condition to verify. The first of the 3 documented checks is “Make the appliance safe”; its result guides what follows.

Finish the checks before buying

Complete the Dyson Vacuum cleaner sequence, starting at “Make the appliance safe”. When the symptom clears without a remaining alert, no replacement is indicated.

Arrange a diagnosis if a stop condition appears

Do not condemn Dyson Vacuum cleaner from “Dyson V12 Detect Slim Absolute: filter wash alert stays on” alone. Stop at the warnings above and let a qualified diagnosis establish whether repair remains safe and proportionate.

Sources used

  • Dyson — Dyson's official support material for Dyson V12 Detect Slim Absolute covers “filter wash alert stays on” and the user-accessible checks used below.

Last checked: 30 August 2026