Robot shows E005 and does not detect the perimeter wire, stays near base or stops randomly

Safety first: Turn OFF the robot and unplug the charging station from mains before working on the perimeter system.

• Check charging station LEDs: Most Ambrogio bases have an LED indicating loop status. If it is off or red instead of green, the loop is open or the transmitter has failed.
• Inspect perimeter wire connections: At the charging station, verify that both ends of the perimeter wire are firmly clamped in the terminals. Tighten screws and ensure there is no corrosion.
• Look for visible wire damage: Walk the perimeter and check for cuts from gardening tools, animal damage, or exposed wire. Repair breaks using Ambrogio-compatible waterproof connectors.
• Test loop continuity: Use a multimeter set to resistance to check continuity between the two wire ends at the base. Infinite resistance indicates a break in the loop.
• Restart system: Plug the base back in, confirm the loop LED is normal, then power ON the robot and clear E005.
• If the loop LED remains faulty: The perimeter transmitter board inside the charging station may need replacement.