Laser Head Fault
Dyson Laser module or head PCB fault

On V15 Detect laser slim head, the laser does not turn on or the head flashes error lights while suction continues.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Damaged laser wiring in cleaner head, Faulty head PCB, Impact damage to laser module, Dirty or obstructed laser window

How to Fix / Troubleshooting

Safety: Remove the battery and detach the laser head. Do not stare directly into the laser when powered.

  • Clean laser window: Wipe the green laser lens/window with a soft, dry cloth to remove dust or film.
  • Check wiring and contacts: Inspect the neck of the head for visible cable damage and clean the electrical contacts.
  • Test on another body: If possible, test the head on another compatible Dyson body to confirm if the fault is in the head or main unit.
  • Replace head: If the laser still fails or the head shows error lights, replace the entire laser slim cleaner head. Internal laser and PCB components are not user‑serviceable.
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Repair Difficulty

Medium 3/5

Required Part

Laser Slim Fluffy Cleaner Head
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