Originally Posted by RonK
I assume these are the parts you replaced?https://partsdr.com/part/w10740218-d...-control-board
If so, double check all connections/connectors for any moisture and/or corrosion, breaks, and a tight fit. (Unfortunately, not easy to check without destroying the part if you already installed it, because it's basically glued on.)
Else the only other thing I can think of is an issue with the wiring from the dispenser control board to the main control board (can't find a part # for that), or the main control board itself. (https://partsdr.com/blog/whirlpool-p...-instructions/
), or you got a bad replacement part.