Roomba 770? Roomba 770 side wheel will not spin when roomba moves?

SOURCE: Brushes not spinning....

My status light came on, the vac beeped twice and stopped. I noticed my brushes weren't spinning. I took an eyeglass screwdriver and took off the center screw that holds on the brushes. I cleaned the shaft that the brushes spin on. replaced brushes and it works great! I just did this now and it is still running. my status light problem is fixed my roomba is 4 years old and I am on my 2nd battery. Seems to have fixed the problem. FYI it was wrapped with hair, dirt and it was greasy.

SOURCE: problems with roomba 530

before taking apart your Roomba read this!!! First to see if it is a defect or really the brushes, take the brusehs out and run roomba with out them. If you still hear the clicking/ thumping then try taking it apart or call roomba. But if the clicking/ thumping goes away when the brushes are out you're in luck! Take the brushes. The brushes have little yellow nubs... those come out. pull them out, and you will see a lot of hair waiting for you. clean all of the hair out ( tweezers are wonderful for this). Once they are cleaned out put the yellow nubs back on. Put your brushes back in and you're Roomba will be back to business in no time!!!

Marvin

• 85242 Answers
• Posted on Jul 03, 2009

SOURCE: My roomba pro elite just goes around in a circle.

the infrared sensor circuit has failed, u will need to have it repaired

SOURCE: My fully charged Roomba 560 just moves a few

You have dead nimh (nickle metal hydride) batteries
You will need a replacement. You can test for this by removing the battery and holding the power button for 15 seconds. This will restart the charging cycle as if the battery were new.

SOURCE: Roomba 560 beeps 9 times; we've cleaned the

Yes, this is known issue and if your bumper moves freely, you might be facing a sensor fault caused by poor quality of components.
Here is a guide to fix it
http://www.schneordesign.com/Avi/irobot/roomba_mod2.htm
Have fun
Avi