There are multiple causes which can result in a washing machine tripping the electrics, such as the motor, the heater, the supressor, a wire shorting out, or water leaking onto an electric part. It can therefore be difficult to determine exactly which cause is responsible without professional help.
The first thing to do is to reset the RCD and to replace the fuse in the plug. After doing this, if the washing machine is still tripping the electrics or it is now no longer working, this will require an inspection and repair by a trained and qualified Bosch engineer.