Black+Decker
Complete Power Loss / Open Circuit
Vacuum will not turn on at all, no lights, even with a known-good 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
Faulty main control PCB, Broken internal power wiring, Failed trigger switch, Battery bay contact failure
How to Fix / Troubleshooting
Safety first: Remove the battery before inspection.
- Verify battery: Confirm the battery works in another Black+Decker tool or vacuum, or test with a second battery.
- Inspect contacts: Check the battery bay contacts for damage or heavy corrosion. Clean gently with a dry cloth.
- Check trigger feel: Ensure the trigger moves freely and returns when released.
- Look for damage: Inspect the housing for cracks or signs of impact that could have broken internal wiring.
- Professional repair: If there is still no response, the main PCB, trigger switch, or wiring harness likely needs replacement by a service technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB / Wiring Harness
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