I have a Kenmore 110.69652800. Your basic old school dryer with an added moisture sensor and a small control board. On the auto/permanent press cycle, it no longer cycles the motor every couple of minutes during cool down. It does turn off the heat, but just keeps running to the end of the cycle.
If you turn the buzzer on, it will buzz every few minutes in the cool down cycle, but the motor just keeps running. So timer, control board, something else? Exactly what controls the motor cycling isn't clear to me.
Thanks for any tips!