It is either PSI23NGMA BB or PS123NGMA bb
Can you tell me where to check the voltage.
Also do you have instructions on how to replace both the motherboard and the dispense board?
I am only seeing a few volts on any of the points checked.
Also the "dispense" board looks like the board I have. I am not sure if they are supposed to be the same but there is no large chip in the center of the "interface" board shown. The front panel looks the same.
I need to know the points to test the voltage between. Is this DC or AC ? I do not see 120V coming into the board or anything on the board that would step it down or convert to DC.
Will the new board work with the older fridge? I assume the chips on board would need to still be there or be on another board. I guess they could also be moved to the other side of the board.
Are you still there? I did not see an answer.