E9
Dreame
Charging Circuit / Dock Communication Fault
E9 error appears, vacuum may not charge properly or may shut down when docked.
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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 dock, Damaged charging contacts on vacuum, Internal charging circuit failure on main PCB, Incorrect or third-party charger with wrong voltage
How to Fix / Troubleshooting
Safety: Unplug the charger or dock from the wall before inspection.
- Inspect charging contacts: Check the metal pads or pins on the dock and vacuum. Clean with a dry cloth. Ensure no deformation or corrosion.
- Test wall outlet: Plug another device into the same outlet to confirm power is present.
- Try direct charger (if applicable): If your Dreame model supports direct plug-in charging, bypass the dock to test the charger.
- Check charger rating: Verify the charger’s voltage and current match Dreame specifications printed on the label.
If E9 persists with a known-good charger and clean contacts, the internal charging circuit or battery BMS may be defective. Professional diagnosis is recommended.
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Repair Difficulty
Medium
3/5
Required Part
Charging Dock / Charger
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