Hilti Complete Power Loss

Vacuum does not turn on at all; no lights, no sound, even with charged battery

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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

Dead or incompatible battery, Broken battery latch preventing full contact, Damaged battery terminals on tool, Internal open circuit on main PCB

How to Fix / Troubleshooting

Safety first: Remove the battery before inspecting contacts.

  • Verify battery: Test the battery on another Hilti 22V tool. If it does not power that tool, replace or service the battery.
  • Check battery seating: Insert the battery firmly until it clicks. Inspect the latch for damage that might prevent full engagement.
  • Inspect contacts: Look at the tool’s battery contacts for bent, recessed, or burned pins. Clean gently with a dry brush.
  • Try a second battery: If a known-good battery does not power the vacuum, the internal power circuit or PCB is likely open and requires professional repair.
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Repair Difficulty

Medium 3/5

Required Part

Battery Interface Assembly or Main Control PCB
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