Carl B Bardstown , KY August 21, 2018 Oven made a popping sound then gave an Ff1 error code. I reset everything and still showed an F1 error code Researched the code, I read the instructions on the back of the oven, removed the OCB board, got online to shop around for a new one, got the best price from Appliance Parts Pro, Ordered it that evening, arrived next day.. Less than 10 minute fix .. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes