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Charging station is flashing green. Roomba’s makes clicking sounds with error message. Have another charging station and the Roomba's charges there fine. I also move another Roomba ( have a total of 3) and they all do the same thing within this particular charger. I have cleaned the contacts frequently with smooth sanding paper and pencil eraser.

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  • $\begingroup$ do you have a question? $\endgroup$
    – jsotola
    Dec 18, 2022 at 17:56
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    $\begingroup$ sandpaper and erasers are very bad for cleaning contacts ... they remove any protective coating which prevents corrosion $\endgroup$
    – jsotola
    Dec 19, 2022 at 5:09
  • $\begingroup$ The best thing to clean electrical contacts like this is a Magic Eraser $\endgroup$
    – Ben
    Dec 20, 2022 at 18:07

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