Robot displays E18 and stops, sometimes with a burning smell from the underside

Safety first: Immediately turn OFF the robot and remove it from the dock. Do not continue to power it if you smell burning or see smoke.

Step-by-step:

• Inspect underside: Look for metal objects (paperclips, screws, pins) stuck near motors or wiring. Remove them.
• Check all rotating parts: Ensure both drive wheels, main brush, and side brush spin freely by hand. Clear any jams.
• Inspect wiring (advanced): If comfortable, remove the bottom cover and visually inspect wiring harnesses for melted insulation or pinched wires. Do not touch components if they are hot.
• Do not bypass protection: Never attempt to bridge fuses or protection devices.

If E18 recurs or any component appears burnt: Stop using the robot and seek professional service. The main control board or motor assemblies may need replacement.