Robot vacuum gets stuck frequently on thresholds, rugs, or cords without showing an error code.

Safety first: Turn off the robot before inspecting wheels.

• Inspect drive wheels: Check the rubber treads for wear or smooth spots. Replace the drive wheel modules if traction is poor.
• Check front caster: Remove the front caster wheel, clean hair and debris from the axle, and ensure it swivels freely.
• Manage environment: Secure or remove loose cords and very thick rugs that exceed the robot's climbing ability.
• Verify battery health: If the robot slows or stalls easily, test runtime and replace the battery pack if weak.