Xiaomi Charging Circuit Failure

Vacuum will not charge at all, no LEDs light when connected to charger

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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 power adapter, Broken charging dock contacts, Damaged charging port on vacuum, Internal charging PCB failure

How to Fix / Troubleshooting

Safety first: Unplug the charger before inspecting. Do not use a damaged adapter.

  • Test outlet and adapter: Confirm the wall outlet works with another device. If possible, test the adapter with a multimeter or try another original Xiaomi adapter.
  • Inspect dock/port: Check the charging dock contacts or DC jack for bent pins, corrosion, or dust. Clean gently with a dry brush.
  • Bypass dock (if possible): If your model supports direct charging, plug the adapter directly into the vacuum to rule out a faulty dock.
  • Check battery seating: Ensure the battery is fully inserted and latched. Some models will not charge if the battery is loose.
  • If still no response: The internal charging PCB or BMS is likely defective. Replace the charging dock (if external) or the battery pack/main body assembly as appropriate.
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Repair Difficulty

Medium 3/5

Required Part

Charging Dock / Charging Port PCB
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