LCD display will not unlock

Washing machine washes fine no probs just takes about an hour for the machine to unlock after the cycle anyone else had this problem. The machine has LCD display and has push buttons to use. The red key stays on th emachine for at least an hour after the cycle has finshed any ideas how i can get it back to just the 3 minutes?

Can you post the model#

will do but will have to be tommorrow