Roomba brushes won't spin

Check the spinning brush, take it loose with a phillips screw driver. Check the pair of soft tubular brushes, the ends can clog up. Check the small third wheel, it can clog on it's axle which pulls out for easy cleaning.

Hi.

If the red light is solid, that means that the Roomba is near to full discharge. If the light is flashing red, then the Roomba is completely out of charge.

If the Roomba is fully charged, then there may be a fault.

Here full list of light codes:

Pulsing Amber - Charging
Green - Fully Charged
Amber - Partially Discharged
Red - Almost Fully Discharged
Flashing Red - Fully Discharged"

Here manual

See also
Roomba DISCOVERY MODELS' DIAGNOSTIC TESTS

Is the charging ase turned on and is the dust container emptied? Any obstructions?

Have you made sure the brushes aren't clogged with thread and hair, and that the brush bearings are still good?

1) remove the brush guard.
2) remove the brushes
3) remove any hair or debris using the cleaning tool


4) replace the Roombas brush bearings



5) replace brushed and brush guards

If this doesn't work then, try the following:

1. Power off the Roomba.
   
2. Remove the dirt bin.
3. Place the robot upside down on a flat, padded surface.
   
4. Check for any dust or dirt obstructing the Cliff Sensors (with Roomba upside down, the sensors are located in the four rectangular areas just inside the edge of the front bumper).
5. Next, press the front bumper in to make sure it springs back.
6. Make sure both yellow brush caps are installed correctly
7. Make sure the main brush and the flapper brush each have a yellow bearing installed correctly.

Remove and clean the yellow bearing on each brush, then reinstall them. Run the Roomba and ensure that the brushes do turn on hardwood, then test it again on carpet. If the brushes still stop turning on the rug, call customer support at 1-877-855-8593. They'll be able to determine your warranty status and discuss your options.

Make sure you take off the little cap at the end (the one that spins -- just grab it and pull it straight off) and clean under it too. The rest of the brush may look perfectly clean but what happens is that hair gets stuck under spinning cap and, like a slowly growing washer, it pushes the whole brush toward the gear box. When it gets pushed over enough, the large yellow ring starts to rub against the side of the brush deck making it harder for the motor to turn the brush and you get that "remove and clean brushes" message.

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

just learning, but sounds like the one that doesn't spin freely is the good one.

The other may have a broken belt.

http://www.roombareview.com/swiftracer/roombabeltreplacement.shtml

I just fixed mine by cleaning the shaft that the spinning brushes is on. I used an eyeglass screw driver to tke out the screw. it is running great now. I didn't realize my brushes werent spinning at the time of my post. Cleaning this part seemed to have fixed the problem.

I was having the same problem. Roomba would run for 30 seconds and then stop. I tried everything -- then I took the small rubber brush out and removed the small nut at the end. It was packed with dust to the point that it could not turn easily. I cleaned it out and now it is working like a champ. I think the automatic shut down was just a sign that there was too much strain to turn the brushes.