ROBOFAULTS
ROBOROCK·FAULT ERR 9 WARN

Roborock Error 9 — Dustbin not detected

Severity: Warning — robot won't vacuum without a bin and filter in place S5S6S7S8Q
Last verified: 2026-07-05 Tools: none Time: ~3 min Difficulty: easy

DIRECT ANSWER

Error 9 means the robot can't detect its dustbin and filter. Either the bin never clicked in, or the filter's built-in magnet — which is how the robot senses it — is missing or misplaced. Reseat both.
#meaning · #causes · #fix · #parts — link straight to any section

COMMON CAUSES · RANKED

1

Bin not fully seated MOST COMMON

Half-seated bins pass the eye test but not the switch's.

2

Filter missing or badly installed

The robot checks for the filter too. A forgotten filter after washing is a classic trigger.

3

Filter magnet lost UNCOMMON

Roborock's official fix says to look for the magnet on the side of the filter — no magnet, no detection. Replace the filter.

HOW TO FIX IT

No battery or electrical work involved in this fix.

Reseat the dustbin

Pull the bin out and push it back until it clicks solidly.

Check the filter

Confirm the filter is installed the right way round and locked in its frame.

Find the filter magnet

Look for the small magnet on the filter's side. If it's gone, fit a new filter — that alone clears the error.

Restart the robot

Start a clean. If the error survives a new filter and a firm reseat, contact support.

COMPATIBLE PARTS

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

Washable filter, 2-pack — S5

S5

Rinse the filter with water, let it dry 24 hours, and keep a second one in rotation.

Check price on Amazon ↗

Washable filter, 2-pack — S7 & S8

S7S7 MaxVS8S8 Pro Ultra

Roborock suggests replacing the filter every few months even with regular rinsing.

Check price on Amazon ↗

Washable filter, 2-pack — Q series

Q5Q7
Check price on Amazon ↗

RELATED FIRMWARE

S5 series (S5)

SAMPLE DATA — dataset in progress
3.3.9_0017683.5.4_0019103.5.7_0020083.5.8_0020203.5.8_002034

Firmware timelines are rebuilt monthly from release notes. Versions marked as sample data are community-reported and not yet verified. Full firmware timeline →

Sources

Verification

OFFICIAL SOURCE

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

Corrections

Spotted an error? Report a correction — fixes ship within 48h and are logged on this page.