Dyson V15 Detect and V12 Detect Slim™ cordless vacuum's are engineered to make a pulsing sound to let you know if something is preventing airflow from passing through the machine.

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If your machine detects a blockage, the motor will pulse six times. A blockage could occur if an item too large for the machine is accidentally vacuumed up. Our video support guide will help you identify and remove any obstructions from the Soft roller cleaner head, wand or bin inlet.

Leave your machine to cool down before looking for blockages and, for your safety, take care not to touch the power button.

It's also a good idea to give the filter unit a wash - in normal use, this should be done at least once a month. Click here for our video guide:

Always ensure you disconnect your machine from the charger cord before carrying out any maintenance.

Our experts are on hand to help, so leave us a comment if you'd like some further advice. You can also find support online: www.dyson.com/support

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