E018
Mammotion Rain / Moisture Sensor Failure

Mower shows E018; app indicates rain sensor error or moisture sensor fault

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Possible Causes

Rain sensor pad contaminated with dirt, Corroded rain sensor contacts, Broken rain sensor cable, Failed rain sensor module

How to Fix / Troubleshooting

Safety: Turn OFF the mower before cleaning sensors.

  • Locate sensor: Find the rain/moisture sensor on the top or front of the mower (often a small grid or pad).
  • Clean surface: Wipe the sensor gently with a damp cloth, then dry thoroughly.
  • Inspect for corrosion: Look for green/white deposits on the sensor contacts. Light corrosion can be gently removed with a soft brush.
  • Cable check: Follow the sensor cable to the mainboard and ensure the connector is secure.
  • If E018 persists in dry conditions, replace the rain sensor module.
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Repair Difficulty

Easy 2/5

Required Part

Rain Sensor Module
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