Hotpoint wm51?

My daughters machine tripped the earth leakage
Now there is no motor movement
although the programmer will go through the fill empty cycle.
I have replaced the motor with one which I know is ok
But still the same .
Can the programmer be repaired as I am quite good with electronics
Also I have a programmer which looks the same except it has a few more components on could this be used?
I would hate to buy a new programmer for somthing that would cost a few pounds to replace.