Robot mower shows E18 and stops; may be associated with boundary or guide wire following.

Safety first: Turn OFF the mower and unplug the charging station power supply before working on the wiring.

• Check station indicator: Some stations have separate indicators for boundary and guide. Refer to the manual to interpret LED patterns.
• Inspect guide wire connections: At the station, remove and reinsert the guide wire ends. Ensure they are in the correct terminals and firmly clamped.
• Look for damage: Follow the guide wire path and inspect for cuts or breaks, especially where it crosses paths or driveways.
• Test continuity (advanced): Use a multimeter to check continuity of the guide wire from one end to the other.
• If wiring is intact: The guide signal generator in the station may be defective and the station should be repaired or replaced.