Whitenight waits 10 minutes then starts working?

Not sur eon model but load up the dryer shut the door turn the knob to desired time then it will either turn a couple of times then wait 10 minutes then will work normally or it will just wait 10 minutes then work normally. It doesn't matter what time I set, or if I turn the knob back and forth a couple of times. If it is already running and I take things out then put in more stuff and set the time it will work normally if I am quick enough.