my tricity bendix dishwasher will not let mains water in. I have removed and cleaned inlet valve(not much to it) but with no success.It appears the solenoid fixed to end of inlet valve is not being activated therefore not allowing mains water through valve. does anybody know if this is a common fault with the valve and needs replacing or is it more likely to be a fault with the programmer not sending signal to the solenoid or could there be any other reason?