Bosch Intermittent Power Connection / Broken Wiring

Vacuum shuts off intermittently when moving the handle or rotating the wand

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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 battery contacts in handle, Broken wire in pivot joint between handle and motor unit, Cracked solder joints on PCB, Worn connector between tube and nozzle

How to Fix / Troubleshooting

Safety first: Remove the battery before manipulating joints or connectors.

  • Check battery fit: Insert the battery and ensure it clicks firmly. Wiggle it gently; if power cuts in and out, the contacts or latch may be worn.
  • Test movement: With the vacuum running (battery installed), gently move the handle and wand through their full range while listening for power loss. Then remove the battery before further work.
  • Inspect connectors: Check all plug-in joints (handle-to-body, body-to-tube, tube-to-nozzle) for looseness or visible damage.
  • Secure or replace: If a particular joint causes cutouts, the connector or internal wiring in that section likely needs replacement. Often the entire tube or handle assembly is replaced.
  • Avoid strain: Until repaired, avoid twisting or bending the vacuum sharply, as this can worsen the break.
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Repair Difficulty

Medium 3/5

Required Part

Battery Contact Assembly or Wand Wiring Harness
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