It is not both elements. This is a common problem on this unit and it will require that you replace the clock/control board to fix the issue.
The clock control board seems to work fine?
It does but there is a relay on the board that fails and it will not send the proper voltage to the elements so that they can heat. I can get that part number for you if you would like to do the repair yourself. It is very easy.
Would you like the part number?
I will get that for you.
You can get it at www.searspartsdirect.com, www.partselect.com, www.repairclinic.com
Check on Amazon also.
That part goes out alot so Amazon tends to have a few at a good cost.