E10
McCulloch Battery Communication / Battery Not Recognized

Robot mower shows E10 and will not start; often after battery replacement or long storage.

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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

Battery connector not fully seated, Incorrect replacement battery type, Battery management PCB fault, Broken battery harness

How to Fix / Troubleshooting

Safety first: Turn OFF the main switch and remove the mower from the charging station.

  • Check battery type: Confirm that the installed battery is the correct McCulloch-specified pack for your model (voltage and capacity must match).
  • Inspect battery connection: Open the battery compartment and verify the connector is fully inserted and latched. Look for bent pins or corrosion.
  • Reset power: Disconnect the battery for 1–2 minutes, then reconnect. Turn the main switch ON and place the mower on the station to wake the system.
  • Charge fully: Allow the mower to remain on the station until it indicates a full charge, then attempt to start a mowing cycle.
  • If E10 persists: The internal battery management electronics or main PCB may be faulty. Do not bypass safety circuits; have the battery pack and mower tested by an authorized service center.
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Repair Difficulty

Medium 3/5

Required Part

Battery Pack
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