Roomba stops and beeps three times.

try cleaning the front wheel. it is black and white. when it moves, a sensor detects the change from black to white. if the white part of the wheel is too dirty, the sensor can think the roomba is stuck.

After reading Solution #4 and not feeling much of any air come out of the vent, I used a flat head screwdriver to remove the grill at the back of the debris bin. I then spun the vacuum impeller around, shaking out any debris that was stuck (a little wad that had plugged it came out). I then replaced the grill and put the dirt bin back on, and my Roomba worked!

Most likely the vacuum motor in the dustbin is stuck. Mine had a piece of grape branch stuck in it and wouldn't turn. Removed the 6 screws and cleaned it out and it works like new.

I had the same problem - 3 beep codes. According to iRobot's beep code table, this meant "The robot's vacuum is stalled". To verify this, put your hand in back of the rear vent - if you don't feel a decent amount of air coming out, then the vacuum impeller is indeed not functioning.

iRobot agreed to send us a new dirt cup/impeller assembly, but I figured I'd take a look at the original one and see if I could fix it.

In my case, a ground wire had come un-soldered from the side of the impeller motor casing - crappy factory soldering job. I suspect this is a rather common problem w/ the Roomba design - properly soldering a wire to a bare metal surface like a motor case is tricky to unless it's properly tinned & cleaned.



Anyway, I cleaned & tinned a small area of the motor case and reattached the wire the *RIGHT* way. Works great now.

If you're reasonable handy, it's not really a major job - about 10 screws & a little patience. The hardest part was removing the impeller from the motor shaft - use a flat head screwdriver, prying gently, and work it off a little at a time.

Now I've got a spare dirt cup / impeller assembly!

I hope this is helpful to others with the same problem.

JohnB

Just fixed my roomba that was doing the stop after 2-5 minutes of running, beep 3 times ect... What I did was took off the back part (the trash bin) removed the 5 screws on the bottom, this removes the top and bottom shell, then I removed the 2 screws that are at the bottom of the vacuum's motor. And I cleaned it with a damp cloth. Once clean I let it air dry. She is running like she is new :-)

I took the whole thing apart completely apart and removed every inch of hair and carpet fibers, removing the yellow wheel inserts and even the white cog wheels (powering the brushes), then took a toothbrush and clorox and scrubbed the front wheel. I took everyone's suggestions and applied them. This is the first time since the day I bought it, this thing worked! Am I going to have to do this every time?