The machine was working, but leaking water from inlet valve (AP#3050333). I removed the assy., disassembled, cleaned and replaced it. Now there is no water getting into the machine. The water supply is on and I checked that the float is not stuck in the up position.
It is not uncommon for these valves to fail after they have been opened up.
You could check for voltage across the valve (120 volts) when it should be filling.
If you have voltage and it does not open then I would replace the valve.