Robot lawnmower leaves clumps of grass and struggles in tall or wet grass.

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

• Replace blades: Install a full set of new Hyundai blades and screws. Do not mix old and new blades.
• Raise cutting height: Adjust the cutting height knob or lever to a higher setting and gradually lower it over several days.
• Cut when dry: Schedule mowing for dry periods to reduce clumping and load on the blade motor.
• Clean underside: Remove built-up grass from the deck and blade disc to restore airflow and cutting efficiency.