My POWERbot™ R7040 Robot Vacuum just recently started having a problem during cleaning. It starts the cleaning process, goes a short distance then turns around and drives back up onto the charging station with sweeper and wheels running at full speed. There is a horrible grinding noise as it repeatably collides with the charging base. It does this for about 15 seconds, then I guess it gives up and turns around and resumes its normal cleaning elsewhere. I have not attempted to reset it yet but I dont rule that out.
I'm sorry ti hear that, so that I may be able to look into this can i have your full model number? Also do you see any error codes or flashing symbols?