The timer, maytag p/n: 305448, on my maytag LDE482 electric dryer won't time the drying cycle, but when I move the timer dial manually to the off position, the buzzer sounds & the dryer turns off. Do I have a bad timer or could it be missing a voltage going to the timer. Just want to get an idea before I purchase a new timer, cause it goes for about $130.00 & not sure if it's worth it for this dryer, thanks