E012
Greenworks Guide / Search Wire Signal Error (if equipped)

Robot mower shows E012 and cannot find the charging station; may wander until battery is low.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Broken or disconnected guide wire, Incorrect guide wire connection at station, Faulty guide wire output on station PCB, Interference from buried cables

How to Fix / Troubleshooting

Safety first: Turn OFF the mower and unplug the charging station before working on guide wire terminals.

  • Verify guide wire installation: Check that the guide wire is connected to the correct terminals on the charging station as per the Greenworks installation guide.
  • Inspect for damage: Walk along the guide wire path and look for cuts, nicks, or places where garden work may have damaged the wire.
  • Repair breaks: Use waterproof connectors to repair any damaged sections. Avoid simple twisting or taping.
  • Check station indicators: Some stations have separate LEDs for guide wire status. Confirm they show normal operation.
  • Test docking: After repairs, plug in the station, power ON the mower, and start a return-to-base command to see if it follows the guide wire.

If E012 persists with a known-good guide wire, the station's guide output or mower's guide receiver circuit may be defective.

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Repair Difficulty

Medium 3/5

Required Part

Guide Wire
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