My Kenmore dryer will stop itself and beep 3 times at random intervals when I try to use the "time dry" setting. The same thing happens when I use the sensor drying setting. It will turn itself off, let out 3 beeps, and rapidly use up any remaining time left in the cycle to settle back to "off". It doesn't seem to matter what size the load is or what setting I use (except no-heat seems to complete it's cycle). I have cleaned out all the lint I can get to, but it didn't help. Any suggestions?