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ROOMBA·FAULT ERR 8 WARN

Roomba Error 8 — Vacuum motor struggling

Severity: Warning — suction drops or stops; the robot keeps itself safe eijs
Last verified: 2026-07-05 Tools: none Time: ~10 min Difficulty: easy

DIRECT ANSWER

Error 8 means the vacuum motor can't spin properly or the filter is clogged. Empty the bin, knock the dust out of the filter, and rinse the bin — never the filter — letting everything dry before refitting.
#meaning · #causes · #fix · #parts — link straight to any section

COMMON CAUSES · RANKED

1

Clogged filter MOST COMMON

Fine dust cakes the filter and chokes the motor. Filters are consumables, not lifetime parts.

2

Overfull bin

A packed bin leaves the fan nowhere to push air.

3

Debris in the fan UNCOMMON

A pebble or clump of hair rattling in the impeller stalls the vacuum outright.

HOW TO FIX IT

No battery or electrical work involved in this fix.

Empty the bin

Press the bin release, empty it, and clear the bin opening of packed debris.

Clean the filter

Tap the filter firmly against the inside of a trash can. If it's past two months of use, replace it — no water, ever.

Rinse the bin and dry it

With the filter out, rinse the bin with warm water and let it air-dry completely before reinstalling.

Reboot and retest

If a clean bin and fresh filter don't clear the error, the vacuum fan itself is failing — contact support.

COMPATIBLE PARTS

As an Amazon Associate, RoboFaults earns from qualifying purchases. Prices are shown on the retailer's site.

High-efficiency filter, 3-pack — e, i & j series

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iRobot recommends replacing the filter about every 2-3 months; tap it clean weekly, never rinse it.

Check price on Amazon ↗

High-efficiency filter, 3-pack — s series

s9s9+

The s series filter is wider than the i series part; the two are not interchangeable.

Check price on Amazon ↗

Sources

Verification

OFFICIAL SOURCE

Last verified: 2026-07-05 · How we verify a fault code

Corrections

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