E08
LG Charging Circuit / Dock Communication Fault

Vacuum displays E08; battery will not charge or charging stops prematurely.

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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 charging stand or wall-mount dock, Damaged DC adapter, Dirty or bent charging contacts, Internal charging PCB failure in battery or main body

How to Fix / Troubleshooting

Safety first: Unplug the charger from the wall before inspecting contacts. Do not short the contacts with metal tools.

  • 1. Verify power outlet: Plug another device into the same outlet to confirm it has power.
  • 2. Inspect charger and dock: Check the LG power adapter for damage to the cord or plug. Ensure the adapter is firmly plugged into the dock and wall.
  • 3. Clean charging contacts: On both the dock and the vacuum/battery, gently wipe the metal contacts with a dry cloth. If there is light corrosion, use a cotton swab slightly dampened with isopropyl alcohol and let dry completely.
  • 4. Try direct charging (if supported): Some LG models allow direct connection of the adapter to the battery or main body. Bypass the dock to see if charging resumes.
  • 5. Test with another adapter (same rating): If available, use a compatible LG adapter to rule out a bad power supply.
  • 6. If E08 persists and the battery never charges, the internal charging circuit or battery BMS is likely defective. Replace the battery pack first; if issue remains, the main body PCB or dock must be serviced.
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Repair Difficulty

Medium 3/5

Required Part

Charging Stand / Power Adapter
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