turn off both taps that supply the water to the machine, remove cold pipe and place into a bucket turn on turn you should have a good supply (not a dribble )if a dribble check HOW PIPE IS CONNECTED TO YOUR SUPPLY repeat this test for the other tap.
Do you have self cutting taps fitted ? you can tell these as they clamp onto the supply check supply hole for blockage of rust better still CHANGE TAPS, ( washer WILL struggles to fill through a LITTLE HOLE 1/8" BIG )now look in the rear of machine where the taps attach you will see plastic mesh FILTERS remove and clean lime scale etc replace and try FILLING machine again
wirecutterman
April 2008