Customer Questions and Answers for Control Board by Whirlpool

Hello Jay. F:70 / F:71 flashes when there is no communication between the machine control and the console electronics. You will need to replace the main control board in the unit. Also, check the line voltage coming to the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html