i have a DF61 - not sure if there is a difference between the df61 and the dwf61.
df61 is cold fill only.
my df61 did not fill either.
i detached the cold fill. uncliped the plastic flap which exposed the inlet valve.
i took the wire terminals and cleaned the spades. re-connected the wires and re placed the plastic flap. attached the water and turned the machine to start. bingo...
you can buy the inlet valves for about 25 pounds - worth while having for spare just incase it breaks for good at xmas!!