Princess No Power / Dead Unit

Cordless vacuum will not turn on at all, no lights or sounds, even after charging.

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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

Completely discharged or failed battery pack, Faulty power button or trigger switch, Open circuit in internal wiring harness, Blown fuse or failed control PCB

How to Fix / Troubleshooting

Safety first: Ensure the charger is unplugged before handling the battery. Do not short battery terminals.

  • Step 1 – Verify charger and outlet: Confirm the wall outlet works and the Princess charger LED behaves as described in the manual. If the charger LED never lights, replace the charger.
  • Step 2 – Check battery charge status: Place the vacuum on charge for at least 3–4 hours. Observe any battery LEDs. If there is no indication at all, suspect the battery or charger.
  • Step 3 – Inspect battery fit: Remove and reinsert the battery, ensuring it clicks firmly into place. Check contacts for dirt or damage.
  • Step 4 – Test power button/trigger: Press and hold the power button for 3–5 seconds. If there is still no response, the trigger switch or control PCB may be faulty.
  • Step 5 – Swap components (if possible): If you have access to another compatible Princess battery, test with it. If the vacuum powers on, replace the original battery. If it remains dead, the internal electronics require service.
  • Step 6 – Professional diagnosis: Internal fuses and PCB components are not user‑serviceable. Contact a Princess service center for control PCB or wiring harness replacement.
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Repair Difficulty

Medium 3/5

Required Part

Battery Pack
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