bbaker58,
When you press the "clean" button after charging, does the Roomba give you any audible tones? Those tones are the key to understanding failures in the 400 series. See chart below to decode those tones
If you get no tones at all, then either (1) you're not getting power from the battery to the main circuit board or (2) the main circuit board is dead. You really have to open the unit up to figure out which it is. Circuit board replacement is a pretty involved procedure since it requires disassembly of almost the entire robot. If you are brave and want to try it, replacement PCAs are available from places like www.RoboticVacParts.com. They are my favorite shop because they sell parts tha iRobot refuses to sell to consumers and they're prices always beat what iRobot charges.
Roomba Says
What It Means
What You Should Do
Plays 4-note song as Power button blinks RED
Play sound
The battery is low and needs recharging
• Connect the robot to the charger or Home Base® and recharge the battery.
“Ehh”
Play sound
The Cliff Sensors are dirty or malfunctioning
• Pick up your robot and turn it over.*
• Check for any debris that might be caught underneath the front bumper, around the Cliff Sensors.
• Wipe the Sensors with a lint-free cloth or use compressed air to clean them out.
"Uh-oh"
A wheel is stuck or is not touching the ground
• Lift the robot and place it down again.
• Press the Clean button to restart the cycle.
“Uh-oh” plus 1 beep
The robot's main brushes are stalled
• Pick up your robot, turn it over* and remove the wire guard.
• Look for something blocking the brushes; you may need to remove and reinstall the brushes to remove the obstruction.
“Uh-oh” plus 2 beeps
The robot's Side Brush is stalled
• Pick up your robot and turn it over*
• Check to see if something is wrapped around the Side Brush.
• Remove the Side Brush with a screw driver and check for string or hair wrapped under it.
• Replace the Side Brush, place Roomba in the center of the room and press Clean to resume cleaning.
“Uh-oh” plus 3 beeps
The robot's vacuum is stalled
• Remove and empty the Dirt Bin.
• Use a flat-head screwdriver to remove the grill at the back of the Dirt Bin.
• Spin the Vacuum Impeller around, shaking out any debris that may be stuck.
• Replace the grill and the Dirt Bin.
“Uh-oh” plus 4 beeps
Play sound
The robot's Drive Wheels are stalled
• Your robot may be stuck, or something may be caught in a wheel.
• If it's stuck, place it in the center of the room and press Clean. It should resume cleaning.
• If it is
not stuck, lift the robot, turn it over*
and look for something caught in the wheels. Test the wheels by pushing
them in and out and making sure they rotate freely. Place robot in
the center of the room, press Clean, and it should resume cleaning.
If this continues to happen every time you clean, you may need a software upgrade. Contact iRobot Customer Support.
“Uh-oh” plus 5 beeps
The robot's Cliff Sensors are obstructed
• Pick up your robot and turn it over.*
• Check for any debris that might be caught underneath the front bumper, around the Cliff Sensors.
• Wipe the Sensors with a lint-free cloth or use compressed air to clean them out.
“Uh-oh” plus 6 beeps
The robot's Wheel Drop Sensors are overloaded (robot is stuck in a bumpy area)
• Pick up your robot, place it in the center of the room, then power it off and then on again.
• Select the cleaning cycle you prefer and let it go to work.
“Uh-oh” plus 9 beeps
The robot's Wheel Drop Sensors have failed at startup
• This failure requires you to contact iRobot Customer Support.
Click here to send us an email.
“Uh-oh” plus 10 beeps
The robot's bumper is not registering obstacles
• If the robot travels for a long distance without bumping into
anything (which would be unusual), it might think it’s stuck and can’t
move; press Clean again and it should resume cleaning.
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