iRobot Roomba · updated 2026-07-06

Error 17: Navigation failure

What it means

The robot got lost and could not complete its cleaning job.

The fix

Clean the floor-tracking sensor and restart the mission from a clear, open area.

Applies to

900 and i Series

Source

Official iRobot support article: https://homesupport.irobot.com/s/article/19553

Fix didn't take? Charging-family errors that recur usually mean the battery — see the charging-errors guide. For anything deeper, here's who actually repairs Roombas in 2026, with published prices.