iRobot 400, 4150 owner manual Miscellaneous Troubleshooting

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	Likely cause	What to do
beeps after
“uh-oh”
No beeps	A wheel is stuck or is	Pick up Roomba, place it down securely on the floor and
	not touching the ground	touch the clean button to restart the cycle.
1	The main brushes	Turn over Roomba and remove the brush guard by pushing
	cannot turn	the two yellow tabs. Remove the brushes, clear any
		obstructions, and replace them again.
2	The side brush cannot	Turn over Roomba. Look to see if something is wrapped
	turn	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	Turn over Roomba and clear any debris that might be
	failed or are blocked	caught underneath the front bumper in the cliff sensors. You
		can also use compressed air to clean them out.
6	Wheel obstruction or	Turn over Roomba and remove any obstructions that
	robot attempting to	prevent the wheels from seating all the way up into
	drive over an obstacle	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/	Battery not seated	Remove Roomba’s battery by pushing the side clips and
Power light will not	correctly	re-insert the battery making sure you hear an audible
illuminate		click.
Roomba is not	Bin is full	Empty the bin and clean Roomba’s brushes.
picking up debris
Roomba does not	Charger is not	Ensure that the charger is correctly connected to the wall
charge	plugged in	and to Roomba. Roomba’s charger will illuminate a solid
		green light when plugged into a power source.
Roomba backs up	Dirty cliff sensors	Use compressed air to clean out Roomba’s cliff sensors.
frequently and
behaves erratically

26 iRobot Roomba Owner’s Manual