Have a sears Kenmore Ultra II under counter dishwasher. Seems to work fine, however, when it is finished the washing cycle, and is drying, the digital readout shows "LO". Do not have the manual. What does this mean? It seems to be hot when the door is opened, steam comes out and the dishes are hot. Thanks for any help.

What is the model #?

Not sure, but the number on the paper glued to the inside of the door is 3373414. Thanks. It was purchased probably about 1990-92.