Error 8 — Suction / vacuum motor problem
The vacuum motor is jammed, clogged, or has failed to spin up properly.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Typical cost
- $10-20 (2-3 pack)
- Verified against
- homesupport.irobot.com ↗
The fix
Roomba replacement filter
Vacuum airflow blocked by a dirty filter or clogged bin inlet
Diagnose first: Empty the bin and clear the inlet first — a clogged filter is the single most common cause of Error 8. A filter more than ~2 months old or visibly gray/matted should just be replaced rather than kept in service.
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How to fix it
- Empty the dustbin completely.
- Remove the filter, tap it out, and reinstall (replace if older than 2 months or visibly clogged).
- Inspect the bin inlet for clogs — clear with a finger or compressed air.
- On i/j/s/Combo series, wipe the bin sensor windows in the robot's bin cavity with a dry cloth.
- Check the rubber extractors and brush area for blockage.
- Reinstall bin firmly and press CLEAN. If Error 8 persists, the vacuum motor module needs replacement.
Why it happens
Typical signs: 'Error 8' voice prompt · Reduced or no suction noise · Robot stops shortly after starting · Bin shows little debris collected
- Clogged airflow path Bin inlet, filter, or vacuum tube blocked with debris or pet hair.
- Dirty or wet filter Filter saturated with dust or moisture restricts airflow.
- Bin sensor dirty (i/j/s series) IR full-bin sensors in the bin cavity covered in dust.
- Failed vacuum motor Motor bearings worn or impeller jammed.
More iRobot robot vacuum codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: homesupport.irobot.com.