How to Troubleshoot & Replace Ge AP4334006 / WD12X10271 Interlock Switch Plunger

Replaced interlock switch and plunger. 

Replaced door switches and plunger , spring. Other than the switches I believe the top of the plunger had contact issues as the updated part had larger contact 

I went to your web page, saw few videos, read about the most common cause for the dishwasher not to start, I spent 25 dollars in parts and 22 dollars to rush my order because I had the dishwasher full of dirty plates and cookware. I asked for the parts about 12:30 am on Monday and the parts were delivered to me by noon Tuesday . I cut the electricity to the machine, opened the dishwasher as shown in one of the videos (although It was not exactly the same model), changed the parts, connected the electricity back an turned the dishwasher on and let it do my dishes. I calculate that I saved about $150 because I did not call a technician and saved about 3 or 4 days of waiting time for the technician to arrive. I am very happy and my wife happier. By the way, I am a lawyer with no knowledge of mechanical or electrical repairs. 

Replaced actuator plunger and interlock switch. A little difficult to pry off connections to interlock switch due to wear from chronic moisture, but once off, re-install simple and the dishwasher was functioning in 10 min. Definitely recommend trying it yourself before calling a service repair person. 

Changed the water inlet valve for the water problem. To fix the problem of washer running while door was open, took off the front panel and changed the plunger sw interlock and spring which fixed the problem of washer running while door was opened mid wash cycle. Changed the clamp to the discharge hose as it had rusted.Changed keeper latch assembly as it had cracks on the plastic. 

Replaced plunger and spring. So far so good. 

Replaced small shaft on door switch 

I removed the screws to separate the inner and outer door parts, removed the switch cover, replaced the plunger and spring, then reassembled. It took 5 minutes and solved the problem. The issue was that the dishwasher didn’t think the door was shut because the plunger wasn’t activating the switch properly. 

I replaced both parts, Interlock Switch, and the Switch Plunger. I'm not actually sure which one was the actual problem. I replaced them according to the videos on the site: excellent instruction videos. The repair went very smoothly. The dishwasher works perfectly now. 

Watched the video - very good BTW. Bought the relay and actuator for $30, 11 of which was shipping and thus saved $800. Very helpful site. and the part arrived in good time. You guys are great.