I called the Amana appliances company and they said to lower the setting. If that didn't work they recommended calling a repairman which started at $81.00! Goodness knows what the final bill would be !!!!!
This is on a 2 yr old unit!! I had a GE that was bought new, which was still working 37 years later when I sold my home and never once did it require any service.
I think they build appliances to give problems as soon as warranty is past and most times they tell you it would be cheaper to get a new one rather than fix it.