my washer stops after filling with water?

my washer filled up, but it wouldn't start agitating. took clothes out and tried the spin cycle hoping water would drain - it won't work - anytime I make a selection I hear a click on the inside like it's going to start the cycle I select but nothing happens. It's just sitting there with water in it. I even pushed the start button again as well as the rinse but nothing happened. This is one old unit that has the dryer that sits on top of it. Thanks!