Lock light stays on

I held the button forever "air Dry" then goes of and comes back on. I can hold down the cancel button and then the far left button together and normal and light wash light up. Continue to hold and then they flash. No matter what sequence I use I get the same result. I can also push and hold pot pan wash and start the cancel button flashing When I hold it together I get the same result. No mater what lock light comes back on.