Honda Intermittent Power Loss / Thermal Cutout

Robot mower starts but shuts down after a few minutes of mowing without any error code.

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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

Loose battery connector, Failing battery cells under load, Overheating main PCB, Poor contact at charging pads causing low charge

How to Fix / Troubleshooting

Safety first: Turn OFF the mower before inspection.

  • Check battery plug: Open the battery compartment and reseat the battery connector firmly.
  • Verify full charge: Leave the mower on the charging station until the display or indicator shows 100% charge, then test again.
  • Inspect vents: Clean any blocked ventilation openings to improve cooling.
  • Load test battery: If available, use a battery tester or have a dealer perform a load test. Replace the battery if voltage drops excessively under load.

If shutdowns continue, the main PCB or internal temperature sensors may be failing and require professional diagnosis.

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Repair Difficulty

Hard 4/5

Required Part

Battery Pack
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