With just a Phillips head screwdriver and this walk-through, you can open and close any bObi robot vacuum. So long as you have a replacement wheel, follow these steps to install it yourself.
bObi has four floor detection sensors on her underside that warn her not to drive over ledges and stop her from falling down stairs.
One of the quickest repairs for bObi is replacing the main brush motor. To do this, you'll need a Phillips head screwdriver and a replacement main brush motor.