E16
AL-KO
Cutting Height Motor or Potentiometer Fault
Robot mower shows E16 and stops when the cutting height is adjusted.
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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
Height adjustment motor jammed by debris, Broken height adjustment gear, Faulty position sensor (potentiometer), Disconnected height motor wiring
How to Fix / Troubleshooting
Safety first: Turn off the main switch and wear gloves before working near the cutting deck.
- Return to mid-height: Manually set the cutting height to a middle position using the knob or lever, if your model allows manual override. This can relieve stress on the mechanism.
- Clean mechanism: Inspect the area around the height adjustment mechanism for packed grass or stones. Clean thoroughly.
- Listen to motor: Turn the mower on and command a height change. If you hear the motor straining or not moving, the motor or gears may be jammed.
- Inspect gears and linkage: Remove the cover over the height mechanism. Check for broken plastic gears or disconnected linkages. Replace damaged parts.
- Check sensor wiring: Locate the height position sensor (often a potentiometer) and ensure its connector is secure.
- Test again: Reassemble and test height adjustment. If E16 persists, replace the height adjustment motor assembly.
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Repair Difficulty
Hard
4/5
Required Part
Cutting Height Adjustment Motor Assembly
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