Robot mower leaves clumps of grass and the cut quality is poor or uneven.

Safety first: Turn off the main switch and wear gloves before handling blades.

• Inspect blades: Check each blade for sharpness and damage. Replace blades at least once per season or more often in heavy use.
• Correct installation: Ensure blades are mounted with the correct side facing out and that screws are tightened securely.
• Adjust height: Raise the cutting height if the mower is scalping the lawn or leaving clumps in tall grass.
• Clean deck: Remove built-up grass from the underside of the deck to improve airflow and mulching.
• Mow more frequently: Schedule more frequent mowing sessions to keep grass height within the mower's optimal range.