Tower Sticking Electronic or Mechanical Trigger

Vacuum continues running for a few seconds after releasing the trigger (on trigger‑type models).

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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

Delayed response in control PCB, Sticky trigger mechanism, Failing trigger microswitch, Firmware behaviour combined with worn switch

How to Fix / Troubleshooting

Safety first: Remove the battery before working on the trigger or handle.

  • Step 1 – Clean trigger area: Remove dust and debris around the trigger with a soft brush.
  • Step 2 – Observe behaviour: Note whether the delay is consistent or only occasional. A consistent short delay may be normal; a long or variable delay suggests a fault.
  • Step 3 – Inspect switch (if accessible): Open the handle housing (if user‑serviceable) and check the trigger microswitch for signs of wear or sticking.
  • Step 4 – Replace switch/handle: Replace the Tower handle / trigger assembly or trigger microswitch if faulty.
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Repair Difficulty

Medium 3/5

Required Part

Tower Handle / Trigger Assembly
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