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Finally got that weird noise in a 90s Dover unit to stop...
It was a low hum that only happened between the 3rd and 4th floors in this old office building. I tried the usual stuff, checking the guide shoes and rollers, but nothing. On a hunch, I shimmed the rail bracket on the 4th floor landing with a 1/16 inch steel plate... and the hum just vanished. Turns out the whole rail section had a tiny bit of flex we couldn't see. Anyone else run into a noise that was fixed by something simple way down the line?
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fiona_carr2629d ago
My buddy Mike had a 2002 Kone that clicked on every floor landing. He chased it for a week, replacing limit switches and checking door locks. The fix was just tightening two loose bolts on the car top inspection station cover that nobody had touched in months.
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laura48629d ago
That "tiny bit of flex we couldn't see" is such a classic culprit. It's wild how the fix can be so simple after you've checked everything else. Great catch on that one.
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davis.olivia28d ago
That kind of stuff drives me nuts. It's always the last thing you check. Like that time we had a weird hum on a motor, turned out to be a sheet metal panel vibrating just enough to hear. Spent hours on bearings before we found it. Makes you feel kinda silly but also relieved.
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