Ok you need to try and reset the control board. Press "high temp scrub, energy saver dry, high temp scrub, energy saver dry, high temp scrub, energy saver dry, high temp scrub, energy saver dry"
All the lights will go solid at which point you press cancel to reset the board.
**NOTE** if you don't have a "heated dry" button, use the "air dry" or "energy saver dry" button instead.
let me know if that works.
thats bad then, it means the control board has failed. Its located inside the control panel. number 6 on this diagram.you have to remove the screws and open up the control panel to access this. theres a link below to order the board.
control --- http://www.searspartsdirect.com/partsdirect/part-number/Kitchen aid-Parts/Dishwasher-Parts/W10195347/0022/665/Model-KUDS30IXWH1/0593/0130000?keySuffixId=NA&pathTaken=partSearch&pathRender=modelComponent&documentCompId=W1102063&diagramPageId=00002&productTypeId=x&searchModelNumber=KUDS30IXWH1&subCompDesc=Control%20panel%20and%20latch%20parts&brandDesc=KITCHENAID&modelDesc=UNDERCOUNTER-DISHWASHER&blt=11&shdMod= thanks for choosing our service,
So the machine still runs okay ? its just the lights that are staying on ? thats really strange. if the contacts in the control are stuck that would cause the lights to stay on. how much of an affect it will have in the future is really unknown to be honest. I would keep running it and see if it fails completely before ordering a new board. have you run this to the end of a cycle to see if the lights go out after?