Vacuum will not start; LEDs show E10 or ten flashes; unit was recently washed or exposed to moisture

Safety first: Immediately remove the battery pack and unplug any charger. Do not attempt to operate a wet appliance.

Step-by-step checks:

• 1. Remove and dry filters: Take out all washable filters and the dust bin. If they are damp, allow them to air-dry for at least 24 hours.
• 2. Air-dry the main body: Place the vacuum (without battery) in a warm, dry room for 24–48 hours. Stand it upright so moisture can drain away from electronics. Do not use a hair dryer or direct heat, which can warp plastic.
• 3. Inspect for visible water: Check the battery compartment and vents for signs of moisture. Wipe gently with a dry cloth.
• 4. Reassemble and test: After thorough drying, reinstall dry filters and the battery, then test. If E10 clears, avoid using wet filters in the future.

When to stop: If E10 persists or you see corrosion, rust, or white residue on contacts, internal damage to the PCB is likely. Further use may be unsafe; seek professional evaluation.