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My old MRL controller upgrade vs the latest software patch - night and day difference
I finally swapped out the old MRL controller in a 2012 Otis lift at a building in downtown Denver last month. The building manager kept getting nuisance door reversal calls every afternoon. I decided to try the new elevator control software patch from a different supplier instead of just cleaning the door tracks again. The difference was huge. The old controller was giving false signals from the door edge sensors when the sun hit the glass lobby doors. The new software actually ignores those brief light spikes. It took me about 3 hours to flash the firmware, and we went from three service calls a week to zero in the past 30 days. Has anyone else had luck with software fixes over hardware swaps for intermittent door issues?
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sagey694mo ago
Man, tbh I used to be one of those guys who always wanted to swap out the whole controller when there was a tricky door issue. Like I figured a hardware fix was the only real fix. But after reading this I gotta say I'm rethinking that. Honestly it makes a ton of sense that newer software can handle those wonky light spikes way better than an old controller that was never designed for glass doors and afternoon sun. Ngl I've seen building managers waste a ton of money on replacement parts that didn't really solve the root problem. This is a solid reminder that sometimes the cheaper and faster option is actually the better one, especially if it saves you from those repeat callbacks.
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craig.parker4mo ago
My buddy manages a big apartment complex and he told me about a setup where they had three different controllers fail in the same spot over two years... turns out it was just a bad power supply feeding them dirty voltage the whole time. Saved him a fortune once they swapped that instead.
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