To enter the "secret" service menu for diagnostic cycles (like the self-cleaning condenser cycle):
These logs remain even after power cycles, helping diagnose intermittent problems.
While holding the button, turn the dial one click clockwise to the (often "Drum Clean").
Use the button (often acts as the "Up" or "Next" arrow) and the Temp button (acts as "Down" or "Previous"). The program dial may also select the tens digit.
Full automatic test mode. Press Start to begin (the door will lock).