Eric M Seattle , WA August 05, 2018 Appliance: Whirlpool Dishwasher WDT780SAEM1 E2/F2 error code The dishwasher control panel was acting funny, not showing cycle times. So I pulled the plug and restarted it. Then it gave the E2/F2 code. Some googling turned up some ideas, beginning with checking the wires and voltages. I checked those, and found that the control panel was giving the proper voltage. The next step is to replace the user interface. I found the part on AppliancePartPros.com at a reasonable price. They sent it quickly. It was a fairly straightforward install, but you do need a star driver for my Whirlpool model. There are instructional videos on youtube. Dishwasher worked great after the install. I noticed that the dishwasher paneling that protects the interface from steam was warped. So I filled the gap with some J-B Weld glue. It is a tough glue that can withstand high temperatures. That seems to be working well so far. Read More... 25 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Screwdrivers, Socket Set