E017
Greenworks Wheel Encoder / Speed Sensor Fault

Robot mower shows E017 and stops; may mention wheel sensor or speed error.

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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

Dirty or damaged wheel encoder disc, Faulty hall sensor on drive motor, Broken encoder wiring, Main PCB input failure

How to Fix / Troubleshooting

Safety first: Turn OFF the main power switch and tilt the mower carefully to access the drive wheels.

  • Inspect wheel hubs: Look for encoder discs or magnets near the drive motors. Check for dirt, grass, or damage.
  • Clean encoder area: Use a soft brush or compressed air to remove debris from the encoder disc and sensor.
  • Check wiring: If visible, ensure the small wires from the motor/encoder to the main harness are intact and not pinched.
  • Test movement: After cleaning, power ON and drive the mower a short distance to see if the error reappears.

Persistent E017 usually requires replacement of the affected drive motor (with encoder) or repair of the wiring/PCB.

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Repair Difficulty

Hard 4/5

Required Part

Drive Motor with Encoder
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