Gee, I just wish that my problems were as easily fixed, my Maytag heavy duty dryer is only 5 months old and it’s making a loud knocking noise every time the drum turns, I use it several times a week, I called Maytag and they said that it happens when the dryer is not used very much, but I have six kids, mine gets used a lot. But they never really could answer my question about why it’s doing Pithecanthropus knocking. The said they were going to send a technician out, but they have called twice and rescheduled the appointment. So, I’m just not sure what they will do.