Ge dishwasher display is dead gdf630psm3ss

Dishwasher Repair
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1

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How to troubleshoot the interface board When I turn off and on the electrical breaker it will light up the board some times. I removed the interface board plug and plugged it back in and then the board will work again.

2

On the main control board you would test for 13.4 VDC going to the UI board from the main board a the J402 connector on the main board. If there is proper power then this will be a User interface issue. If there is not power then this will be a faulty control board.