Robot lawnmower shows E08 and stops; wheels spin freely in the air or mower is stuck on an obstacle.

Safety first: Turn OFF the main power before freeing the mower from obstacles.

• Remove obstacles: Lift the mower off any roots, edging stones, or holes where wheels are spinning without moving the chassis.
• Check lawn conditions: Avoid mowing when grass is very wet or muddy. Adjust schedule to drier times of day.
• Inspect wheel treads: Examine the drive wheels for worn or clogged treads. Clean out packed grass and consider replacing wheels if the rubber is smooth.
• Boundary adjustment: Move the boundary wire slightly away from steep edges, flower beds, or soft soil areas where the mower frequently gets stuck.
• Test encoders: If E08 appears even on flat, firm ground, a wheel speed sensor may be faulty. Observe whether one wheel behaves erratically or stops intermittently.

Persistent E08 on good terrain suggests a failing drive motor encoder or mainboard. Replace the affected drive motor assembly.