Customer Questions and Answers for Transformer by Whirlpool

Tom, You'll need to disconnect the cutter grid wiring harness from the side panel of the cabinet and check for 4 to 5 ohms resistance across the two wires, with a multimeter. If you have the proper resistance, the cutter grid is good, and you'll need a control board WP2304016 if not, the grid wire 4387020 is "open" and will need to be replaced. Heres some meter usage information should you need it : [http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html] Good Luck and Thanks