Customer Questions and Answers for Dishwasher Control Board by Whirlpool

Hello Mike, The fuse will open when an excessive current flow is present in the circuit. Be aware that the current flow will be the same through the entire circuit. This means that the current that blew the fuse was the same from the breaker to the motor and all of it in between. For this reason, you will need to check the entire circuit for loose connections and proper resistance readings. I would start at the wire nut connections where the power is connected to the unit behind the kick panel. If there is a melted wire nut, this caused the fuse to blow. If not, ohm out the motor windings and make sure there are not shorted components and/or harnesses. If no problem is found in the unit, check connections to the breaker in the breaker box. If you jump the fuse without correcting the issue, the board will require replacement since this will allow excessive current flow to the board.