It sounds like you may have a shorted key on the touch panel. You may need to replace the control panel but there is a trick you can try first. Turn the power off to the appliance. Use a hair dryer to heat the panel up until very warm while rubbing firmly over the buttons. Often times, this will restore operation. Be sure to get the panel very warm but not hot enough to damage the plastic. Let me know if anything at all changes, please.