Question about iRobot Roomba 4210 Bagless Robotic Vacuum
Won't charge on their own docks nor a brother's dock. Must charge battery in other Roombas and transfer--runs & cleans great w/ charged battery; just won't charge itself. Sits on dock for days glowing red--hit the clean button and it's dead.. The charging problem seems to be in the robots themselves--have 4 of them and all docks are fine. HELP!
Posted by Anonymous on
I've been having the same problem myself. The charger is apparently built into the roomba main board. From what I've read there are two MOSFETs U2 & U4 that can go out and require replacement to fix the problem. More info here
Posted on Jul 08, 2009
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Posted on Jan 02, 2017
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