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Hi, next you'll need to check the junction box the cook top is plugged into. You'll need a volt meter and now how to use it. A live voltage check will need to be made. You would need to verify that the outlet/box has the correct voltage and polarity. If it does, then the main control inside the top is shorted or has a loose connection. The cook top will need to be dismantled to inspect the wire connections and replace the board. On this model the control board does fail often so I would suspect it has in this case. You need to rule a voltage and loose connection problem out before you order the control.
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