E13
Cedrus
Internal Fan / Electronics Overheating
Robot mower shows E13 and stops; may be accompanied by unusual noises from inside the housing.
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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
Cooling fan blocked or failed, Ventilation grilles clogged with debris, High ambient temperature and direct sun exposure, Temperature sensor fault on main board
How to Fix / Troubleshooting
Safety first: Turn OFF the mower and allow it to cool in a shaded area before opening any covers.
- Relocate charging station: Ensure the station and mower are not in direct midday sun. Provide shade or move to a cooler location if possible.
- Clean vents: Inspect and clean all ventilation openings with a soft brush or compressed air. Do not use water.
- Check internal fan: If your Cedrus model has an internal cooling fan, open the housing (if user‑serviceable) and verify that the fan spins freely and is not obstructed by wires or debris.
- Temperature sensor check: Look for loose connectors on the temperature sensor harness attached to the main board or battery.
- Persistent overheating: If E13 recurs even in cool conditions with clean vents, the fan or temperature sensor may need replacement, or the main board may be misreading temperatures. Contact a service center.
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Repair Difficulty
Hard
4/5
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