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Shoutout to that one door switch that finally gave up on me
I had an Otis elevator in a 12-story office building in Phoenix acting up all last week, doors cycling open and closed for no reason. Turned out to be a crusty door zone switch that I'd passed over three times because the contacts looked fine from the outside. Has anyone else had a seemingly good component just fail in a weird way like that?
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the_paul4mo ago
Hate it when that happens. I've had relays that looked perfect on the outside but had hairline cracks in the solder joints that only showed up after I tapped them with a screwdriver. Drove me crazy for two days on a mid-rise in Scottsdale.
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murphy.tessa4mo ago
Had one on a two-story residential job in Tucson last spring that was doing the exact same thing. Was a DPDT relay for the pool equipment panel, everything checked out fine on the meter but the pump would randomly stop running. Turned out to be a cold solder joint on one of the NC terminals. Took me three trips out there before I finally tapped it with the handle of my screwdriver and it clicked.
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