Maytag MDG7500AWW dryer works just fine, however the touchpad display is blank. The display is lit up but there are no words or lines. The touchpad does beep when i press it. I tried putting the touchpad into service mode but still no display. I tried unplugging the dryer for a 10-20 secs. Do i need to replace the control panel and the touchpad together? part 33002886?