My dishwasher started giving the clean light 7 blinking code. I've checked the heating element (It heats up). I've done the reset numerous times and the dishwasher runs fine for typically three full washes, then will stop in the middle of the next one and start the blinking again.
Answer Hello Wgilliam,
There are typically five components in the water heating circuit that will trigger the fault code. The heating element W10082892, the high limit thermostat 661566, the door switches 8269209 X 2, the control W10285179 and the harness W10413099. 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.
The drain pump checks out fine, what should I check next? Thanks
Answer Hello Ed. If there is no power to the pump, replace the board on the unit.