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Was troubleshooting a door lock issue on a 90s Otis and the old foreman said something that stuck with me.

He pointed at the worn contact and said, 'The problem isn't always where the code says it is, it's where the wear pattern tells you.' I spent an hour chasing a fault code before I actually looked at the physical lock block and saw the uneven contact wear. How often do you guys find yourself ignoring the code and just trusting the physical evidence right in front of you?
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3 Comments
allen.ivan
Man, I used to live and die by the fault codes! But after chasing a ghost code on a Gen2 that turned out to be a loose terminal block, I learned to look at the hardware first. The machine doesn't lie.
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miam75
miam757d ago
Ever feel like the computer is just messing with you for fun? You chase the code for hours and the fix is a loose screw. Classic.
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emery19
emery197d ago
Remember that weird grinding noise on the 2000s Dover my buddy was fighting? The car kept throwing a position sensor fault, so he swapped like three of them. Turns out, the real issue was a cracked guide shoe bracket way up in the hoistway that was letting the car tilt just enough to mess with the sensor reading. He spent two days on the code before someone finally climbed up there and saw the broken metal. Sometimes you gotta mute the beeper and just look at the machine.
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