Cordless vacuum shows E10 and the LED display may indicate a communication or system error; unit may not respond to mode changes.

Safety first: Remove the battery and do not operate the vacuum if there are signs of liquid damage around the display.

• Power reset: Remove the battery for 5–10 minutes, then reinstall and test. This can clear minor firmware glitches.
• Check for moisture: Inspect the display area for condensation, cracks, or signs of water entry. If present, stop using the unit and seek service.
• Observe display behavior: Note whether the display flickers, shows partial segments, or remains blank. This information is useful for a technician.
• Service recommendation: Accessing the display ribbon cable and main PCB requires opening the handle or body, which can damage seals and void warranty if done incorrectly. Have a professional inspect and replace the display module or mainboard as needed.