Robot mower does not follow the boundary correctly and sometimes crosses outside the lawn

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

• Check wire depth: Ensure boundary wire is no deeper than recommended (usually a few centimeters). Raise it closer to the surface if necessary.
• Reduce interference: Move wire away from metal fences, rebar, or buried cables.
• Inspect receiver coil: If other causes are ruled out, the boundary receiver coil inside the mower may be weak and require replacement.
• Test in problem area: Observe mower behavior along the problematic section and adjust wire position slightly inward.