Lefant Low Suction Performance

Robot vacuum leaves a trail of dust and debris behind it and suction seems weak.

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Possible Causes

Dustbin full, Filters clogged, Air leak around dustbin seal, Fan motor partially blocked or failing

How to Fix / Troubleshooting

Safety: Turn OFF the robot before removing the dustbin.

  • Step 1 – Empty dustbin: Remove and empty the dustbin completely.
  • Step 2 – Clean or replace filters: Tap out dust from the primary and HEPA filters. Replace if they are heavily soiled or older than recommended.
  • Step 3 – Check seals and gaskets: Inspect the rubber gasket around the dustbin outlet and the suction inlet on the robot. Ensure they are not deformed or missing.
  • Step 4 – Inspect suction path: Look for clogs in the suction channel between the brush and dustbin. Remove any blockages.
  • Step 5 – Test suction: With the robot running, feel for airflow at the exhaust. If airflow is still weak, the fan motor may be failing and require replacement.
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Repair Difficulty

Easy 2/5

Required Part

Filters or Suction Fan Assembly
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