Robot lawnmower sometimes runs outside the boundary wire area without any boundary error code.

Safety first: Unplug the charging station before adjusting the boundary wire.

• Raise boundary wire: If the wire is buried, bring it closer to the surface or peg it on the surface to strengthen the signal.
• Check station output: Ensure the charging station LED indicates normal boundary transmission. If weak, the station PCB may be failing.
• Inspect mower sensor: The boundary sensor coil is usually located at the front of the mower. Check for physical damage or loose mounting.
• Reduce interference: Keep the boundary wire away from other buried cables and large metal structures.