Hi
I just bought a new roomba 620 after my roomba 520 died after 3years in service.
The new 620 starts fine but if I press the clean button when it is running then nothing happens, i cant stop it.
If it is charge with the docking station, then I can start it like normal afterwards.
If it has been charge directly with the cable, then it wont start. Then clean button just glow green but nothing happens.
I have to reset it, then charge it with the docking station before it works again.
I have tried to reset it, and I did the 72hour charging. But no change.
Any idear ?