Welbilt Breadmaker Model 3300 Displaying "Wait" Light?

I am using a Welbilt Model #ABM3300 bread machine. I have successfully made two loaves of bread. I attempted a third loaf yesterday, but it did not turn out at all. I assumed that the flour that I was using may have been too old. I attempted another loaf of bread some time later and now the "wait" light is on and won't go off. I cleaned the machine and made sure that the kneading blade was secure, no help.

By Margaret Saccone from Lehigh Acres, FL