tmaffre
No doubts the problem with your dishwasher is a bad control panel. If the color of your dishwasher is black then the control panel with the part number
AP3136031 is the right one. The break down diagrams for the Whirlpool dishwasher with the model number GU980SCGB3 you can find here:
Model GU980SCGB3
If you need the complete step by step instructions how to replace the control panel on your dishwasher I'll be glad to help you.
Good luck.
Gene.