Only going backwards? The front bumper may be stuck.
Occasionally, the front bumper of your DEEBOT may get stuck in. Your robot may give you a "bumper exception" error. When that happens, your robot will only go backwards (as it thinks the walls are closing in on it!).
Just gently pull out the front bumper a quarter inch - and voila, your DEEBOT should be back to normal.
If that doesn't work - contact us...