Maytag stops at any cycle after warm

Hi,

The washer stop in the middle of cycles after a while (usually in the second wash). Even if the cycle is changed it doesn't do anything. After couple of days and after the machine is disconnected you can use it again and it works fine but only for one set of clothes.

Careful part is that when it stop a small burned smell comes out it.

The model is Maytag MAV7000AWW.

Any suggestion would be greatly appreciated.

Thanks a lot,
Al