Roomba Discovery brushes will not turn

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Roomba Discovery brushes will not turn

Postby suzette100 » July 11th, 2007, 6:21 pm

I have a Roomba discovery and suddenly the brushes will not turn. I took the dirt cup out and confirmed that this is the case. I cannot tell if it has suction or not.

I replaced the brush and the rubber piece next to it and the same problem exists. I took the dirt cup off and cleaned off all user accessible places to no avail.

Any ideas on what to try?
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Postby suzette100 » July 11th, 2007, 6:32 pm

Forgive me, I forgot one thing:

There is a little yellow slotted cap on the end of my black rubber roller. A few days ago I was cleaning Roomba and I saw a piece that looked exactly like that on the floor. It was not (as far as I can tell) from my black roller or the brush assembly, in fact, I cannot figure out where it may have come from.

When I replaced my brush set, I took care to notice if the parts on the new brush/rubber roller matched my old set, and they did. I have no idea where that little piece came from, or if it is supposed to fit in there somewhere.
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Postby suzette100 » July 11th, 2007, 6:55 pm

Forgive me for posting again, but to clarify, the item I'm talking about is a brush bearing, according to
http://www.irobot.com/sp.cfm?pageid=212

OK, and in once again looking at my roomba and writing this, I figured it out. I'll put this down for anyone else with issues.

Looking at the fifth picture on that page I linked to above, I discovered that the piece that fell out was indeed the brush bearing. I had the Roomba apart at the time and did not see where it came from. My new set of brushes did not have a bearing attached, so I still didn't see where it came from after inspecting the new brushes; I thought it may have fallen off from inside somewhere.

So my brush bearing is back in place and she's working great now. Thanks for your patience and I hope this helps someone else! Be very careful when you clean your Roomba so that you don't lose that little part!
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Postby vic7767 » July 11th, 2007, 7:14 pm

Very good troubleshooting efforts. The problem you have encountered happens a lot, this will help remind others to keep an eye on the yellow bearing caps.
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Postby geekgranny » July 12th, 2007, 12:49 pm

vic7767 wrote:Very good troubleshooting efforts. The problem you have encountered happens a lot, this will help remind others to keep an eye on the yellow bearing caps.


I keep a few extra of those bearings. I think I've lost a total of 3 or 4 doing hasty cleanings over a bin or compost pile that I don't want to dig into. :oops: They seem to jump off when you're not looking.

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