Display shows E004 and mower stops near boundary wire

Safety first: Turn OFF the mower and unplug the charging station from mains power before touching any wiring.

• Check charging station LEDs: Most Cub Cadet bases have a loop indicator LED. If it is off or red, the boundary loop is open or shorted.
• Inspect boundary wire at base: Open the terminal cover and verify both boundary wire ends are firmly clamped and not corroded. Trim and re‑strip the wire ends if needed and reinsert.
• Walk the perimeter: Look for visible damage where the boundary wire may have been cut by edging tools, pets, or garden work. Common spots are path crossings and flower bed edges.
• Use a wire break locator (optional): A simple AM radio or dedicated loop tester can help locate breaks by following the signal along the wire.
• Repair breaks: Use Cub Cadet‑approved waterproof boundary wire connectors to join cut sections. Do not twist wires together without proper connectors.
• Test again: Plug in the charging station, confirm the loop LED is solid green, then restart the mower. If E004 persists with a good loop LED, the loop receiver circuit in the mower may be faulty.