how can i fix hotpoint wmd 940 ultima?

hi there i have a hotpoint wmd 940 ultima,
my fault is i start the washing machine, when i come back to it,the machine has switched off, there is no display showing any fault codes, it does not blow fuses, i just need to press on the power button, on the machine, the washing is still warm and no water in the drum just soaking wet, this seems too happen on super wash, i think it could be the pressure switch, if you can tell me the problem, i will be grateful.
thanks.