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Oral b # 4717 repair.

It appears that the button to turn on has stopped working. Could this be bad batteries? I have continued to push the button and the unit might come on and work fine then I have to push the button several times to get it to turn off?  Now it will not come on at all. Thought we would try opening it up, with your great instructions, and replace the batteries and see if it makes a difference.  My unit is a little different than the one in the picture. Where do we buy the batteries? Thank you.

orksecurity6 years ago
For whatever it's worth: In my case, I had a purely mechanical jam. Trying to run it caused the driver transistor to start smoking; I stopped that immediately before it could kill itself. Grabbing the metal shaft with a pair of pliers and forcing it back and forth through its cycle shook free whatever had gotten trapped in the gears; it has worked OK since then.
lizzyastro6 years ago
Sounds more like the swithc than the batteries to me.
.  +1
me too.