iRobot Roomba Error Code 31: How to Fix It

Q: Why does my Roomba show error 31?

Error 31 indicates a power management fault, usually due to a battery that can't hold a charge, is not correctly installed, or needs resetting. It can also happen if the battery is completely drained.

Q: How do I reset my Roomba battery?

Remove the battery, press and hold the CLEAN button for 10-15 seconds to drain residual power, then reconnect the battery. Alternatively, charge the battery for 2 hours after a soft reset (holding CLEAN for 10 seconds).

Q: Can a dead battery cause error 31?

Yes, a battery that is old, dead, or deeply discharged can trigger error 31. Replacing the battery usually resolves the issue.

Q: Do I need a new Roomba if error 31 won't go away?

Not necessarily. Try a new battery first. If that doesn't work, internal components may be faulty but are often repairable. Contact iRobot support before buying a new robot.

Q: How long does a Roomba battery last?

Typically 1-2 years depending on usage. If your Roomba is older and shows error 31, battery replacement is likely needed.

Abstract

Error code 31 on your iRobot Roomba indicates a power management fault related to the battery. This often means the battery is not holding a charge or the Roomba can't communicate with it properly. In most cases, a simple reset or battery replacement will resolve the issue.