E15
LandXcape
Blade Motor Speed Sensor / Tachometer Fault
Robot mower displays E15 and stops, often when blades are starting or stopping.
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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
Defective blade motor Hall sensor, Damaged motor cable, Debris interfering with motor rotation, Main board tachometer input failure
How to Fix / Troubleshooting
Safety first: Turn OFF the mower and wait for the blades to stop completely before turning it over.
- Clean motor area: Remove grass and debris from around the blade motor and cutting disc. Ensure nothing rubs against the motor housing.
- Check motor cable: Follow the blade motor cable from the motor to the main board. Inspect for cuts, crushed sections, or loose connectors. Reseat the plug on the PCB.
- Spin test: Manually rotate the cutting disc to confirm it turns smoothly. Any grinding or tight spots may indicate internal motor damage.
- Electrical test: If you have the skills and tools, test the Hall sensor outputs according to the LandXcape service data. Otherwise, replace the blade motor assembly if E15 persists.
- Main board: If a new motor does not resolve E15, the main PCB tachometer circuit is likely faulty and should be replaced by a professional.
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Repair Difficulty
Hard
4/5
Required Part
LandXcape Blade Motor Assembly
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