iRobot Roomba Charging Errors: What to Check for Battery, Dock, Contacts, and Temperature Use the exact iRobot charging code and Roomba model to check battery, dock, contact, and temperature issues, including the docked-but-losing-charge Error 121. Read guide→
iRobot Roomba Error 520: Check Dock Communication Use iRobot’s Error 520 checks for named Roomba Plus and Max families when the robot cannot communicate with its dock. Read guide→