E7
DeWalt Trigger / Switch Input Fault

LED indicator shows E7 or rapid red flashing; vacuum does not respond to trigger

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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

Failed trigger switch, Broken trigger return spring, Disconnected trigger wiring, Contaminated switch contacts from dust or moisture

How to Fix / Troubleshooting

Safety: Remove the battery before opening the handle or trigger area.

  • Inspect trigger movement: Ensure the trigger moves freely and returns fully when released. If it feels sticky or jammed, clean around it with compressed air.
  • Open handle housing: If the design allows, remove screws and separate the handle halves to access the trigger switch.
  • Check connections: Verify that the switch terminals are firmly connected to the wiring harness and that no wires are broken.
  • Clean switch: Blow out dust; if accessible, use a small amount of contact cleaner on the switch (with battery removed) and operate it several times.
  • Replace switch if faulty: If the switch does not click or shows open circuit when pressed (tested with a multimeter), replace it with the correct DeWalt trigger switch for your model.
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Repair Difficulty

Medium 3/5

Required Part

Trigger Switch
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