E26
TerraMow
Wheel Encoder / Speed Sensor Fault
Display shows E26; one wheel spins faster or slower than the other, causing crooked paths.
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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
Dirty or damaged wheel encoder disc, Faulty wheel speed sensor, Loose encoder bracket, Broken encoder wiring
How to Fix / Troubleshooting
Safety: Turn OFF the mower before lifting or removing wheels.
- Inspect encoders: Remove the drive wheel cover to access the encoder disc and sensor. Clean off grass and dirt from the disc slots.
- Check alignment: Ensure the encoder disc runs centrally through the sensor gap without rubbing.
- Inspect wiring: Verify the wheel sensor cable is intact and firmly connected to the TerraMow main board.
- Swap test (advanced): If possible, swap left and right wheel sensors to see if the fault follows the sensor.
- Replace faulty parts: Install a new TerraMow wheel encoder sensor or encoder disc if damaged.
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Repair Difficulty
Hard
4/5
Required Part
TerraMow Wheel Encoder Sensor
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