KUIA18NNJS3 KitchenAid Ice Maker - Instructions

We guessed what the problem was and we were extremely fortunate that we guessed correctly. The part was not technically difficult to install just a little awkward to get to. My husband had no trouble although he did take the machine out of it's space and lay it flat on the floor. One benefit of this process was being able to clean some of the areas that are almost impossible to get to when the motor is in place. It was well worth the extra shipping charge to get it before the weekend.

Technically, the repair did not require specialized knowledge. However, replacement of the motor required some effort. Because the motor is located at the bottom of the unit in an area with copper tubing & wiring hindering access it was physically difficult to remove and then replace the motor. A problem arose because the shaft on the replacement motor was larger than the original motor's. Thus the fan would not fit on the new motor. Luckily, I found a fan locally that fit the motor. It would be very helpful if a fan was included in the motor kit. The ref. is now running smoothly

didn't go well at first. Got it all hooked up relatively easily but it didn't work. Called customer service who suggested hooking pump up to other power source to be sure it worked. It still didn't work. After closer inspection a connection wasn't hooked up on pump. After connecting got it back in about 30 min. Working like a charm now.

I determined the pump was not working by running the ice maker. After it started a cycle, I could fell the underside of the cold plate to insure it was indeed cold, but no water was flowing.
First, be sure the water pump electrical plug is in., it releases by pressing together the tabs at the ends, not sides.
To replace the pump, turn off the water supply and cover the drain hole at the bottom of the ice bin so you don’t drop parts down it. The screw-plug at the bottom of the water tank or a quarter will do.
Remove the water tank below the pump by taking out the thumbscrews at both ends. You can then see the hose at the bottom of the pump. If it is off, that may be the problem.
To remove the pump, pull the fill hose to the left out of the slot and bend it behind the pump to get it out of the way. Unplug the electrical connector and the pump hose. There are three ¼” hex head screws, teo on the side wall, one in back. The middle one is the hardest to access. I used both a nut driver and a socket wrench with a 4” extension.
When installing the new pump, be sure to plug in the electrical connector, the discharge hose at the bottom and position the fill tube as you found it. Forget any of these and nothing works. Re-install the water tank, replace the drain plug and turn on the water supply, in that order.