iRobot DISCOVERY 400 - Manual (Page 26)

26 iRobot Roomba Owner’s Manual
Troubleshooting
Roomba will tell you when something is wrong with a two-tone “uh-oh”
sound followed by beeping. Refer to the chart below to resolve Roomba’s
problem. If the problem is not resolved, visit www.irobot.com/support.
Number of
beeps after
“uh-oh”
Likely cause What to do
No beeps A wheel is stuck or is
not touching the ground
Pick up Roomba, place it down securely on the floor and
touch the clean button to restart the cycle.
1 The main brushes
cannot turn
Turn over Roomba and remove the brush guard by pushing
the two yellow tabs. Remove the brushes, clear any
obstructions, and replace them again.
2 The side brush cannot
turn
Turn over Roomba. Look to see if something is wrapped
around the side brush. Remove the side brush with a screw
driver and check for string or hair that may be wrapped
around it.
3 The vacuum cannot run Remove and empty Roomba’s bin.
4 A wheel cannot run Your Roomba may be stuck or something may be wrapped
around a wheel. Look for something wrapped around the
wheels. Push them in and out and make sure they turn
easily.
5 The cliff sensors have
failed or are blocked
Turn over Roomba and clear any debris that might be
caught underneath the front bumper in the cliff sensors. You
can also use compressed air to clean them out.
6 Wheel obstruction or
robot attempting to
drive over an obstacle
Turn over Roomba and remove any obstructions that
prevent the wheels from seating all the way up into
Roomba’s body. Also, remove any obstacles that Roomba
could drive over.
9 Sensor error Please contact iRobot Customer Support.
10 Roomba is stuck Pick up Roomba and start it again somewhere else. Use a
virtual wall or other barrier to keep Roomba away from the
place it got stuck.
Miscellaneous Troubleshooting
Problem Likely cause What to do
Roomba’s CLEAN/
Power light will not
illuminate
Battery not seated
correctly
Remove Roomba’s battery by pushing the side clips and
re-insert the battery making sure you hear an audible
click.
Roomba is not
picking up debris
Bin is full Empty the bin and clean Roomba’s brushes.
Roomba does not
charge
Charger is not
plugged in
Ensure that the charger is correctly connected to the wall
and to Roomba. Roomba’s charger will illuminate a solid
green light when plugged into a power source.
Roomba backs up
frequently and
behaves erratically
Dirty cliff sensors Use compressed air to clean out Roomba’s cliff sensors.