Proscenic Trigger Lock / Latch Mechanism Failure

Vacuum starts only when the trigger is held and stops immediately when released (on models with lock function)

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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

Broken trigger lock button, Worn latch spring, Debris under trigger preventing full travel, Faulty trigger switch on PCB

How to Fix / Troubleshooting

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

  • Clean around trigger: Use a dry brush or compressed air to remove dust and debris around the trigger and lock button.
  • Test lock function: Engage and disengage the lock button several times to free any sticking parts.
  • Check trigger feel: If the trigger feels loose or does not return properly, the internal spring or latch may be broken and the handle assembly should be replaced.
  • If electronic lock fails: On models with electronic trigger lock, a faulty switch or PCB may be the cause and will require replacement of the handle/control board.
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Repair Difficulty

Medium 3/5

Required Part

Handle / Trigger Assembly
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