Terry for Model Number KUIA18NNJS11 I have a KUIA18NNJS11 under counter icemaker that was working fine and now the circulation pump AND the drain pump stopped working at the same time. I have entered diagnostic mode and when I get to the step for the circulation pump to kick on it does not. Also, in the next step the drain pump does not come on. All other steps check out fine I have checked voltage on each plug for the pumps and they each show around 12-13 volts when they are supposed to be energized during the diagnostic mode. I have a 2nd kitchenaid ice maker and I tried switching the pumps with the same results so it is not the pumps that are the issue. I also switched control boards and the control board worked when I installed it into my other working icemaker so the control board does not appear to be the issue either. What I am confused about is how there is voltage to the pumps but they do not come on. As I said, I know the pumps work because I installed them into another machine and they work fine. Is there something I am missing? Is there a common wire that feeds both pumps? Not sure where to check the harness besides in the control housing and it looks fine. Any help is greatly appreciated! Thank you, Terry
Answer Terry, The common wire between the 2 pumps would be the red black wire, look for corrosion on the connectors or for an issue with the connection points since there is voltage but not coming on. Check for breaks in the wiring. Read More... Answered by AppliancePartsPros.com | Thursday, July 19, 2018