LawnMaster
Incorrect Cutting Height / Deck Level
Robot mower's blades occasionally strike the ground or scalp the lawn, leaving bare patches.
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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
Cutting height set too low, Height adjustment mechanism jammed, Uneven wheel sizes or tire wear, Bent deck or blade motor mount
How to Fix / Troubleshooting
Safety first: Turn OFF the mower and disconnect the battery before adjusting cutting height.
- Raise height: Increase the LawnMaster cutting height setting and test on a small area.
- Check adjustment mechanism: Ensure the height adjuster moves smoothly through its full range and locks securely.
- Inspect deck: Look for signs of impact that may have bent the deck or blade motor mount.
- Verify wheel condition: Replace any mismatched or heavily worn wheels that could tilt the mower.
If scalping continues even at higher settings, a bent deck or motor mount may require professional straightening or replacement.
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Repair Difficulty
Medium
3/5
Required Part
Height Adjustment Mechanism
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