E10
DeWalt Internal Connection / Harness Intermittent Fault

Vacuum does not start; E10 or continuous amber LED; works briefly then stops when shaken

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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

Loose wiring harness connector, Cracked solder joint on control PCB, Partially broken wire in handle, Loose battery shoe contacts

How to Fix / Troubleshooting

Safety: Remove the battery before opening the housing.

  • Check battery fit: Ensure the battery locks firmly with no play. If the shoe is loose, tighten mounting screws.
  • Open housing: Carefully separate the housing halves to expose the wiring harness and PCB.
  • Inspect connectors: Press all plug-in connectors firmly into place. Look for any that are partially backed out.
  • Flex test: Gently move the harness while checking for visible cracks or broken insulation, especially near strain relief points.
  • PCB inspection: Under good light, look for dull or cracked solder joints on high-current components. Reflowing solder should be done only by experienced technicians.
  • Resolution: Replace the wiring harness or control PCB if any damage is found. If no obvious fault is visible, professional diagnosis is recommended.
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Repair Difficulty

Hard 4/5

Required Part

Wiring Harness
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