White & grey model Roomba is moving much slower on carpet since I replaced battery and filter, but moves normal speed on linolium. How do I fix this?

Hey Pat,
The wheels/axles/drive must be totally free from any carpet fibers, lint,etc.. so they can spin free..any restrictions will cause a problem.

Not sure if you've changed the filter or cleaned out the brushes recently. I have to dismantle mine, take the two "bars" out and remove hair, and thread from it after two cycles. I also bang the filter out over the trash can and if it's coated with fine dust, rinse it and shake it out into the sink. Just let it dry before you reinstall it. You'll see some mud fall off when you shake it. Also about once a year you have to remove the little black/white ball wheel at the front (I have an older model). Hair gets wrapped around the shaft of this and it doesn't move correctly.

This message sometimes happens when it\'s jammed or caught. I would open it up and really clean everything out to make sure the brushes are not jammed. Also pop out the ball white/black wheel at the front and remove all the hair around the axle for this.



This almost sounds like something caught in the wheels and gears. String and the like can get caught in there. The easiest thing is to find the end of the string and try to unwind it in the direction reverse to what it caught in. I tried taking the whole Roomba apart one time, it was tough, so I don\'t recommend it unless you are very mechanically minded. FYI to everyone with a Roomba, I knew someone who expected theirs to pick up random dry cat and dog poop around the house. No vacuum can do this.

Ok, this is a "Brush Height Adjustment" issue. It will probably work great on a hard surface but on carpet the brushes bog. If you've taken the unit apart already...Sorry....do it again. When you do, you'll see a String which allows the brushes to "Float" on different surface heights. Loosen the screw a little and pull a bit more string through. Re Tighten the screw and put it together enough for a test run. Now reset the roomba.To reset the Roomba, power the Roomba on, and press the Spot, and Dock buttons together for at least 8 seconds. Until it plays a tune. The clock, and any schedule is erased at this time. Try running the Roomba with the dust bin removed to see the brushes spin easier.

Second method, is taking off the bottom cover, and removing the battery. While it's removed, and not plugged into the charger, press the clean button for at least 20 seconds. This will erase the memory. Replace battery, and cover. Run the Roomba to see if the brushes start to spin. You can also remove the brush housing by removing the 4 screws and reseating it, to see if it was a bad connection, since you have the bottom cover off.

Remove the carpet fibre or dust from whichever wheel is stuck. This happens when one of the wheels is stuck and cant move forward.

Replace your belt also check the end-caps on your beater bar to see of they are packed with fibers. clean out any you find.

Roomba won't clean black carpet because it interprets it as a cliff. The sensors under the bumper tell the Roomba that it's about to fall down the stairs and it backs away. Unfortunately, because they're a safety feature, they can't be shut off.

I had a similar problem, I just took my Roomba Red apart and put it back together about four times before I fixed it.  In my case it turned out to be a dirty sensor, fixed as described at
http://mysteryroad.blogs.com/photos/roomba_gallery/xintroroomba_3549.html

Before you open it up I recommend following the diagnostic tests to see if its a physical problem (bad motor belt, hair stuck around the wheel) or a sensor problem (dirt makes Roomba think it is stuck when it isn't).  If you follow the diagnostics one of them will move the Roomba wheels while ignoring the sensors; if the wheels move fine then you probably have a sensor problem.
http://www.roombareview.com/swiftracer/roombareddiagnosticsmode.shtml

-- Ben www.benzado.com

Try running th roomba with the dust bin removed to see if the main brush is turning, if not it could be an issue with the gears being stripped in the brush motor assembly or inside the brush compartment holder. If the gears are fine the brush motor itself may be blown. A new one is about $30.00.

because floor means for lanolium it may have a sensor that detects carpet or linolium