Customer Questions and Answers for Dishwasher Electronic Control Board by Whirlpool

Hello Wgilliam, There are typically five components in the water heating circuit that will trigger the fault code. The heating element WPW10082892, the high limit thermostat WP661566, the door switches WP8269209 X 2, the control WPW10285179 and the harness WPW10413099. The incoming water should be between 120°F to 125°F to prevent a long heating period which can time out the control. The water should be no hotter than 125°F so the control can see a temperature increase from the heating circuit or it will fault the cycle. The unit should be secured under the countertop so all four feet share the weight of the unit to prevent a twist in the body which can prevent both door switches from "making". You can test the heating element, high limit thermostat and harness to them from terminals P9 (blue with red trace) to P3 (white with red trace) on the control board. Remember that the control is part of the circuit and it can also fail. Unless voltage is noted to be absent during the time chart period of water heating, the control is normally suspected last.