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KitchenAid Dishwasher KDFE104DBL5 Trouble code 4-3

Dec 20, 2022
Model Number
1-5 years
My dishwasher was deteriorating taking longer and longer to complete the cycle and ultimately the wash cycle stopped working. Reading online about the wash cycle stopping, the likely culprit is the circulation pump which I have replaced twice with no improvement. The new pump(s) turns on and sounds normal for ~2 seconds and then shuts off again. The washer fills, empties and heats appropriately it simply won't wash.

Going into troubleshooting mode I get the 4-3 code even with the new motor. I am not sure what else I can do except replace the control board which is too expensive.

If I knew I would have invested this much money on a repair and still need to invest more I would have purchased a new dishwasher.
Does anyone have any other ideas?

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