failure mode
Roomba i5+ Loud noise / grinding / rattling
Symptom: Robot is noticeably louder than usual — grinding, rattling or buzzing. Likely root causes: Hair/string wrapped in an extractor or wheel; Debris loose inside the bin or rattling in the body; Worn extractor bearing or end-cap; Object lodged in the vacuum path or fan; Worn drive-wheel module Next steps if owner-level checks fail: Grinding continues after clearing extractors, wheels and bin — a motor or drive bearing may be worn; contact iRobot Customer Care 1-877-855-8593