Robot vacuum leaves lines of debris or clumps of hair behind, especially along its path.

Safety first: Turn OFF the robot before handling brushes.

Step-by-step:

• Empty dustbin: Ensure the bin is emptied before each cleaning session.
• Inspect main brush: Check for worn, flattened, or missing bristles. Replace the main brush if it is worn.
• Check side brush: Ensure the side brush is installed, not bent excessively, and spins freely. Replace if bristles are deformed.
• Clean brush guard: Remove the brush guard and clean its edges and seals. Make sure it snaps back securely to maintain proper brush height.

When to stop: If pickup is still poor after replacing brushes and cleaning, inspect suction performance as well.