Hello Susan, thank you for your submission!
Based off what you have described the bake and broil feature is not working inside of your Frigidaire range. This could be an issue within your control panel or the elements of your range. A reset could help the range clear out any miscommunication that might be happening. You can reset the range by disconnecting power from it by flipping the household circuit breaker off for at least ten minutes. If this does not help correct your issue I would recommend seeking help from a professional technician. Hopefully this information is helpful. -Matt