That's weird. Can't see why it would stop mid-cycle then..

Probably rinsing with cold water, but filling with hot, so stops between the
wash and rinse cycles. First make sure the tap really works, take off the
hose and briefly turn on the tap. If you flood the kitchen, then the tap is
fine. Next, replace the solenoid cold fill valve. You can even check for
voltage across its terminals at the appropriate stage first, if you feel
competent to work on a live appliance. This will tell you if the wiring or
controller is at fault before replacing the valve.

Christian.