Hotpoint tdc60p Keeps blowing capacitor?

My hotpoint tdc60p has had two new capacitors fitted by the repair guy now and it has blown them and i dont just mean stop working these things are melted. I have checked the motor and this is running freely. dose anyone have any idea as to why this may be happening. It will be going back to the repair guy but he dosnt seem to have any anwsers for me apart from swaping out the capacitor cant be doing this every couple of days.

Eddie
February 2006