Robot vacuum's front caster wheel does not rotate freely, causing drag marks or navigation issues.

Safety: Turn off and flip the robot.

• Remove caster: Pull the front caster wheel straight up to remove it from its socket (on most Laresar models).
• Clean thoroughly: Remove hair and debris from the wheel axle and inside the socket.
• Check rotation: Spin the wheel by hand; it should rotate smoothly. If not, replace the caster assembly.
• Reinstall: Push the caster back into the socket until it clicks.