Robot vacuum reports E8 and may shut down; often related to overheating or high-temperature protection.

Safety first: Turn the robot OFF and remove it from the charging base. Allow it to cool for at least 30 minutes before further inspection.

Step-by-step:

• Clean filters and bin: Empty the dustbin and thoroughly clean or replace all filters. A clogged filter is the most common cause of overheating.
• Check brush and inlet: Remove the main brush and side brush, clear all hair and debris, and ensure the suction inlet is not blocked.
• Inspect vents: Make sure exhaust vents on the robot body are not covered by dust or blocked by furniture during operation.
• Test on hard floor: After cooling and cleaning, run the robot on a hard floor for 10–15 minutes and monitor for E8. Avoid thick rugs during testing.
• Advanced diagnosis: If E8 recurs quickly, the motor temperature sensor or main PCB may be faulty. Access the suction motor and main board to inspect for burn marks or damaged components. Replacement of the suction motor assembly or main control board may be required.

When to stop: Persistent overheating after cleaning and cooling indicates a deeper electrical issue; contact a technician.