Roomba going in circles, beeping or a red light: what it means and how to fix it

What does your Roomba’s light mean?

The robot talks through its light ring, sounds and the app. Red is always a problem, but the pattern says which. This applies to the smart models (i, e, s, m and j Series), and these are the red patterns according to iRobot. A 600 series reports an error with an "uh-oh" sound and a voice.

Blue and white are not problems. A blue ping, for example, means the robot sees a Virtual Wall or a Keep Out Zone.

Hearing the error and looking it up

With a solid red light the robot speaks a message. Press the CLEAN button to repeat it. If the robot is on, pressing the bumper works too, and on a Wi-Fi model the error also shows in the app. If the message will not clear, contact iRobot Customer Care and have the serial number ready.

Each series has its own list, and a number can mean something different in another series: the s Series, the j Series and Combo 10 Max and the 600 series. A selection of the messages on the s and j Series:

A message that says "see the app", such as error 21, 25 or 1003, points to an internal error. For many of them iRobot says to reboot the robot, as described below.

My Roomba goes in circles or backs up

A Roomba backs up when it senses an obstacle or a cliff. If it does so with nothing there, its sensors may be dirty, says iRobot. That is iRobot’s page for the 400 series, and the advice for the 600 series is below:

1. Turn the robot off and place it on its back.
2. Blow out the four cliff sensors, the rectangular openings just inside the edge of the bumper, with compressed air, or wipe them with a clean dry microfiber cloth.
3. Briskly tap the bumper 15 to 20 times, alternating left and right, to shake debris out of the bumper sensor.
4. Push the front wheel up out of its housing, remove the debris and hair and snap the wheel back in firmly.

On a dark floor the robot can mistake the surface for a cliff. Block such areas off with a Virtual Wall.

If a 600 series circles and there is no voice message, iRobot says the bumper is not registering obstacles and the robot may be stuck in one place. Tap the bumper to check it works and clean the wheels of hair and debris. In a very large room a Virtual Wall makes a smaller cleaning area.

My Roomba beeps

On a 600 series a two-tone "uh-oh" followed by a voice means it has stopped because of an error, per iRobot. The voice gives the number ("Error nine") and that series’ table says what to do. If the robot plays a four-tone song and says "Please charge Roomba", the battery is flat. Put it on the dock.

If it beeps while charging or keeps doing so, see the charging guide, which explains charging errors and the lights of the dock.

When nothing helps: reboot the robot

A reboot clears many problems and is always safe, per iRobot: maps, schedules and preferences are kept. Take the robot off the dock and hold the CLEAN or power button. That takes about 20 seconds on an i or s Series, 9 seconds on a j Series or Combo 10 Max, and on a 600 series without Wi-Fi you hold HOME and SPOT together for about 10 seconds. If a 600 series has a green dot under the bin, take the battery out and wait 30 seconds before putting it back. Rebooting can take up to a minute and a half. All the steps are in How to reset a Roomba.

Is it time for a new robot?

If the same error keeps coming back after cleaning and a reboot, something may be faulty and Customer Care can help, under warranty too. If you would rather replace it, see what iRobot costs today, 19 October 2026. Models on sale: 26.

The advisor finds the robot that fits your home in seven questions.