Galway, not an uncommon fault on washing machines.
Hopefully just a stuck/broken inlet solenoid valve.
Check if voltage is being supplied to inlet valve when machine is calling for water, if it is then your problem is the valve itself, if not then may be a faulty programmer (costly, but can be bought on the net for a reasonable price) or a dis/bad connection in wiring. Could also be a stuck/faulty water level switch.
Does the machine continue on its cycle even though no water has entered?
NB: Only carry out the above tests if you are competent to do so!!