Thank you so much for your help, Lincoln appliance.
I removed the inlet valve to inspect but nothing apparent.
Ordered a new valve, but meanwhile wished to
use the spin cycle so put everything back together, using the old valve, and now all programs are working perfectly!
Maybe a faulty electrical contact caused the initial problem, the only other thing I can think of is that the machine was disconnected electrically for 24 hrs.
One other thing, I disconnected the pressure switch in order to remove it, but couldn't, so reconnected it.