Tower Mechanical Switch or Trigger Failure

Trigger or power button sticks or does not spring back properly.

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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

Dust or debris lodged around trigger, Broken trigger spring, Worn plastic pivot, Internal microswitch failure

How to Fix / Troubleshooting

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

  • Step 1 – Clean around trigger: Use a soft brush or compressed air to remove dust from around the trigger mechanism.
  • Step 2 – Check movement: Gently move the trigger to feel for binding. If it feels gritty, continue cleaning.
  • Step 3 – Inspect internally (if user‑serviceable): On some Tower models, the handle cover can be removed to access the trigger and spring. Replace a broken Tower trigger spring or handle switch assembly as needed.
  • Step 4 – Replace handle assembly: If the internal microswitch has failed, replace the complete Tower handle / trigger assembly or main body shell with switch.
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Repair Difficulty

Medium 3/5

Required Part

Tower Handle / Trigger Assembly
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