Please help ! I have a 6 yr old Frigidaire oven, all of a sudden, my wife tries to shut off the stove top and it stays on. The only way to stop it is to unplug it from the wall. I believe there is a similar post about this problem on this site but it says to change the switch. I took off the back cover and swapped the switch with the one from the left front burner and still the same problem so the switch is not the problem. My right front burner stays on, even after turning it off. The HE light just stays on all the time.

Can anyone please help, do I have to change the power board like Gene says ? Can someone give me the specifics. Please help.