Cedrus
Blade Brake / Safety Delay Issue
Robot mower's blades continue to spin for an unusually long time after being lifted or stopped.
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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
Blade motor brake circuit weak, Firmware safety delay misconfigured, Faulty lift sensor not triggering immediately, Main board relay sticking
How to Fix / Troubleshooting
Safety first: Do not lift or tilt the mower while blades are spinning. Always wait until blades stop completely before handling.
- Test safety response: On a flat surface, start the mower and then press the emergency stop. Measure how long blades take to stop. Compare with Cedrus specifications.
- Check lift sensor: Gently lift the mower's front while observing blade behavior. Blades should stop quickly. If not, the lift sensor may be slow or faulty.
- Firmware update: Ensure the mower firmware is up to date, as safety timing may be improved in newer versions.
- Service requirement: If blades consistently take too long to stop, discontinue use and have a Cedrus technician inspect the brake circuit and safety sensors.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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