iRobot Biological Growth / Odor Contamination

Vacuum smells musty or emits an unpleasant odor during use.

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Possible Causes

Dirty or damp filters, Debris left in bin for long periods, Moisture exposure inside bin, Pet hair accumulation

How to Fix / Troubleshooting

Safety first: Turn OFF the vacuum and remove the battery before cleaning. Avoid inhaling dust directly.

  • Empty and wash bin: Remove the dust bin and wash it with mild soap and warm water if the manual allows. Dry completely before reinstalling.
  • Clean or replace filters: Wash washable filters thoroughly and let them dry for at least 24 hours. Replace non‑washable HEPA filters if they smell or appear stained.
  • Wipe nozzle and wand: Use a slightly damp cloth with mild detergent to wipe the inside of the nozzle and wand. Do not soak electrical components.
  • Prevent recurrence: Empty the bin after each use, especially when vacuuming pet hair or damp debris.
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Repair Difficulty

Very Easy 1/5

Required Part

Pre-Motor Filter and HEPA Filter
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