Robot lawnmower leaves clumps of grass and struggles in taller growth.

Safety first: Turn OFF the mower and wear gloves when handling blades.

• Replace blades: Install new Ecovacs blades if the existing ones show rounding, chips, or rust.
• Adjust height: Raise the cutting height and perform multiple passes over very tall grass.
• Schedule changes: Increase mowing frequency so the mower cuts smaller amounts each time.
• Dry conditions: Avoid mowing when grass is wet to reduce clumping.

If cutting remains weak despite new blades, the blade motor may be losing torque and should be tested or replaced.