Lg 3W40025L Dishwasher Door Position Safety Switch OEM Part

This was a very simple repair. It was done in about an hour. It involves disconnecting the dishwasher, emptying the water from the inside, taking it out and flipping it over, and replacing the diverter motor. This repair is done on the underside of the dishwasher, nothing to disconnect inside (just remember to remove the baskets). It would be wise to order the motor seal and micro switch that goes with it as they are all cheap parts and easy to swap out during the procedure. Be sure to take pictures of what you disassemble in case you forget how they go back. You will have to reuse the plastic cam from the shaft of the old motor, or you can order a new one (note which side is up!).

Replaced the Cam Motor & Switch Cam with the help of a video that was made available with the parts from ApplianceParts.

Most important lesson: This model has a newer and very different chassis, the underside has a monolithic polyethylene base that is very difficult to remove. The diverter motor is accessible but just barely with an offset wrench. Also, the sprayers are quite different from the video, I could not figure out how to remove them. Note that the LG calls the diverter a Vario motor. I replaced the motor but this did not fix the issue, so I called in the pros. They confirmed that the motor was not the issue, but discovered two round metal punch-outs that were holding the internal plastic valve immobile. Removed the obstruction and the problem solved. This dishwasher includes an elaborate filter system that makes it all but impossible for objects that size to have been washed into the system, so going to file a claim with LG.

Dishwasher is fixed! The Cam Motor part fixed the issue.