Roomba: Error 15
An internal board error: a fault inside the robot rather than something you can clear from the brushes, wheels or bin.
Applies to: Roomba i Series. What you notice: red light, steady (solid); error number 15. This number is iRobot’s; on another maker’s robot the same number means something else.
What iRobot says to do
- iRobot’s chart gives no home step for this code. If the message persists, contact iRobot Customer Care with the robot charged, its serial number and, for a warranty claim, proof of purchase.
Source
iRobot’s own support page or manual, read on the date shown.
- iRobot Customer Care: The Roomba i Series Error Messages Chart — Roomba i Series. homesupport.irobot.com Checked 2026-09-29.