Goods Scene Troubleshooting
Dreame H11 – Battery failure — E2 / E3 / E7 / E8 / E9
Dreame identifies these codes on H11/H11 Max as battery-failure conditions.
Issue meaning
What this issue means
Dreame identifies these codes on H11/H11 Max as battery-failure conditions.
Start here
First checks
Dreame directs the user to customer service rather than a routine user repair.
Inspection
Area to inspect
Battery pack and associated battery electronics.
Goods Scene guidance
What to do next
Record the exact code and obtain battery-system diagnosis before ordering a replacement battery.
Practical guidance is kept separate from manufacturer wording.