Our Diplomat dishwasher gets part way through the wash cycle then shuts down and of the row of five lights along the top door edge, the first three flash in unison. If the power is turned off then on again to restart the machine, the last two lights flash as soon as the power switch is on.
I read several posts that suggest a system reset is required. I tried all suggested methods but none have had any good effect.
Just to help others with this 3 flashinig light symptom, it can also indicate the controller board is dead. want to know why? read on...
An engineer was called, he removed the door panel revealing the control circuit board, top left of the door just below the row of lights and associated selector button. He tested the board with a multimeter and declared the board dead, since the correct voltages were not detected.
So what could have caused the board to blow?
Before calling the engineer I removed broken glass from inside the main water pump, jamming the impeller. Since this is an induction motor the start up current can be double the normal running current, this would be enough to destroy any semiconductor controlling the motor.
I've answered my own question here but I thought this may be helpful to anyone with the same situation.
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Mr. Edwards, Aberdeen.
July 2007