Water inlet valve would not shut off on cold side.

I removed the faulty valve after unplugging the AC cord. Two screws, the two water hoses were removed, and the electrical connections were unplugged. The old valve could then be rotated so that the clamp on the fill tube could be loosened and the tube pulled off the valve.
The new valve body seemed to be an exact replacement, but the mounting bracked was slightly different and required drilling two new screw-mounting holes; an easy job.
Before securing the mounting plate to the machine, the fill tube and clamp were reattached, and the electrical connectors plugged in. After connecting the supply hoses and plugging in the AC cord, the machine filled with water properly and everything seemed to be back to normal.
I might have been able to use the original mounting plate, but it had been taken to a different location which was too far away to easily retrieve.