Error twenty-six (26) means the vacuum is experiencing insufficient airflow.
It is recommended that you clean or replace the bin filter. Then try to run the robot again.
Roomba® 100/1000, Bin and Filter
Roomba® 200/2000, Bin and Filter
Roomba® Plus 400, Bin and Filter
Roomba® Plus 500, Bin and Filter
Roomba® Plus 600, Bin and Filter
Roomba® Max 700, Bin and Filter
Roomba® Max 800, Bin and Filter
If the error persists, please reboot the robot by holding down the power button on the robot for 10 seconds. Hold the button again for 3 seconds to turn it back on. Doing so should clear the error from the robot's memory. Try running Roomba® again.
If the error persists after replacing the bin filter and rebooting the robot, contact iRobot® Customer Care.
For expedited service, please have the following ready: