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The 800 series of the iRobot robotic vacuum, the Roomba.

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Roomba is not charging

Roomba is on the docking station, and the lights on the Roomba are not lighting showing it’s charging. We replaced the battery and still nothing.

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A couple of questions pertaining to your issue is available at:

Check you unit's Owner Manuel for Error Codes.

Buy a multimeter and check voltages etc before making purchases like batteries.


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jenpier first make sure that the contact points on the Roomba are clean. The charging contacts are under the front bumper of the robot. Clean those with a moist cloth and you can even use some rubbing alcohol on those. Once those are cleaned try a hard reset by holding the CLEAN button down for 10 seconds. Release it when all the indicator lights come on.

“A new lithium-ion battery won't work until you wake it up. To do this using the base station, set the station on a level surface; plug in the station, and verify that the indicator light comes on. Place Roomba on the base station and wait for several seconds until the battery wakes up. When it does, the light on the base station will go out, and the battery indicator on Roomba will begin flashing. It too will go out after a minute.” from here

Let us know what you get with all of this. If you still have a “dead” Roomba, it’ll be time to tear it apart and to check things with a meter.

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