Roomba: Pulsing red light ring
The robot is charging, but the battery is still too low to start cleaning.
Applies to: Roomba i, j, s and e series, Combo 10 Max. What you notice: red light, pulsing or breathing.
What iRobot says to do
- Leave Roomba on its Home Base to charge.
- If it is still not fully charged after 3 hours, iRobot sends you to its article on a Roomba that does not turn on or charge properly.
Source
iRobot’s own support page or manual, read on the date shown.
- iRobot Customer Care: What do the Lights on the Light Ring Mean? — Roomba i, j, s and e series and Roomba Combo 10 Max. homesupport.irobot.com Checked 2026-09-29.