iRobot Roomba · updated 2026-07-06

Charging Error 3: Charging Error 3 — internal charging issue

What it means

An internal charging fault or contact misalignment.

The fix

Reboot the robot and reseat it on the dock; service may be needed if it persists.

Applies to

All series

Source

Documented by established repair references (iRobot per-series charts are not directly linkable per code): https://vacuumist.com/roomba-error-codes-troubleshooting/

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.