iRobot Roomba Owner's Manual page 23

Charging Errors (while charging)
Roomba Roomba
blinks... displays...
1 blink -
2 blinks Err2
3 blinks Err3
5 blinks Err5
6 blinks Err6
7 blinks Err7
TIP: To reset Roomba's software, simultaneously hold down the two
buttons above and below CLEAN for 10 seconds. This will clear
all scheduled cleaning times, reset the clock and may resolve
some software issues.
Roomba Likely cause
says....
Charging Roomba's battery is not
Error 1. connected.
Charging Roomba has a
Error 2. charging error.
Charging Roomba has a
Error 3. charging error.
Charging Roomba has a
Error 5. charging error.
Charging Roomba's battery is too
Error 6. warm.
Charging Roomba's battery is
Error 7. not cooling.
For more detailed information, visit: www.irobot.com
What to do
Confirm that Roomba's
battery pull-tab is removed.
Remove the bottom cover of
Roomba to remove and
re-install Roomba's battery.
See page 27.
Let Roomba cool down for
at least one hour and try
charging again.
Reset Roomba's software
(refer to tip below) and try
charging again.
Reset Roomba's software
(refer to tip below) and try
charging again.
Let Roomba cool down for
at least one hour and try
charging again.
Let Roomba cool down for
at least one hour and try
charging again.
23