Einhell Mechanical Wear in Blade Motor or Bearings

Robot lawnmower is very noisy during operation, with grinding or rattling sounds from underneath.

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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

Worn blade motor bearings, Debris trapped between cutting disc and deck, Loose blade screws, Cracked cutting disc

How to Fix / Troubleshooting

Safety first: Switch OFF the mower and disconnect the charging station. Wear gloves when working near blades.

  • Inspect for debris: Turn the mower upside down and remove any stones, branches, or compacted grass from around the cutting disc and deck.
  • Check blade tightness: Ensure all blade screws are tight and blades can pivot freely. Replace any damaged screws or blades.
  • Spin test: Rotate the cutting disc by hand. Listen for grinding or roughness, which indicates worn motor bearings.
  • Replace worn parts: If noise persists after cleaning and tightening, replace the cutting disc and, if necessary, the blade motor assembly.
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Repair Difficulty

Medium 3/5

Required Part

Blade Motor
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