Makes me appreciate our landlord's electro-mechanical "music-box" washing machine.

It has been working for 25 years with no servicing, except when it "broke" once about 5 years ago. So I just opened it, stared at it for a while, and after considering the symptoms (no click in the door locking mechanism but power indicator light turning on), I realized the issue will be with something very early on in the fixed washing cycle, before the timing motor gets activated, and there will be no serious electrical damage elsewhere (fuse intact). So I looked at the door locking mechanism (bi-metalic thing) and noticed that the cable connector leading to it was slightly shifted. Re-seated the connector, and the machine started working again.

While it was open, I didn't notice anything horrible (corrosion, leaks, nothing). Probably the next thing that will "break" will be when the motor's carbon brushes will "run out". :)

You can understand and diagnose these things even without knowing too much. That's how obvious, simple, and accessible the electro-mechanical design is.