Makita Water Ingress / Seal Failure

Robot mower occasionally shuts down with moisture inside the housing after rain or sprinklers

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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

Damaged top cover gasket, Cracked housing, Missing screws or clips, Washing mower with high-pressure water

How to Fix / Troubleshooting

Safety: Turn OFF the mower immediately and remove it from wet grass.

  • Dry the unit: Bring the mower indoors, remove the battery if allowed, and let it dry in a warm, ventilated area for 24–48 hours.
  • Inspect seals: Check the top cover gasket and any rubber seals around buttons and connectors for damage or misplacement.
  • Look for cracks: Examine the housing for visible cracks or holes that could let water in.
  • Avoid pressure washing: Clean the mower only with a damp cloth and soft brush; never use a hose or pressure washer.

If water ingress recurs or corrosion is visible on internal parts, have the housing and seals replaced and electronics inspected by a Makita service center.

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Repair Difficulty

Hard 4/5

Required Part

Top Cover Gasket
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