failure mode
Roomba i3+ Weak suction / leaves debris behind
Symptom: Robot runs normally but picks up poorly, leaves visible debris, or seems weak. Likely root causes: Bin full — the app reports bin status; High-Efficiency filter clogged; Extractors fouled with debris at the ends / under the caps; Side brush clogged, bent, or not spinning; Debris stuck in the bin intake / vacuum path Next steps if owner-level checks fail: Suction still weak after a full clean and fresh filter — vacuum motor/impeller may be failing; contact iRobot Customer Care 1-877-855-8593