The trip is very likely to be an Earth Leakage Breaker - Residual Current Device (RCD) it will trip if it senses mains current running to Earth - possibly through a person which is not good. A safety thing.
There will be a wiring or more probably a component fault in the machine.
Unless you have experience in these things or are very confident with electrical matters then your chances of making your own diagnosis and repair are very small.
An appliance engineer or a replacement machine are your best chances.
Good luck...
Peccavi
July 2013