James C Clifton , TX May 13, 2015 Appliance: Whirlpool 30`` Built-In Electric Combination Microwave Wall Oven WOC54EC0AS00 F1e5 error code Replaced numerous items including this Inverter and two control boards but the Magnetron was the ultimate solution. The tip was clearly burned through when I removed the original. Read More... 27 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Nut Drivers, Screwdrivers