Doors — the weakest link in elevators
This past month reminded me why doors remain the most common source of elevator problems.
First callout: a small self-tapping screw wedged between the slow leaf's door shoe and its sill track — a hard-to-reach spot. The result: a bent door leaf, a Fermator operator thrown out of sync, and a fault in the main controller. One tiny screw — a lot of work.
Every operator has its own character. Fermator offers solid training options. Sematic (used by Schindler, Otis) sometimes needs an extra handheld terminal. Classic GAL units give you full manual access and adjustment, but their weak point is the rollers that trigger the car door contact. Meiller has an app — scan a code and set everything up right from your phone.
Sometimes you don't catch the fault on the first visit. You keep watching it, until the lift eventually gives itself away right in front of you. To avoid a repeat visit, you have to find the actual cause and fix it — not just clear the faults and walk away.
Another case: a worn-out steel cable on the spring closer of a landing door. End of the working day, no spare in stock — I picked one up that evening, and by morning the lift was running again.
They say: "Fast, good, cheap — pick two." For happy clients, I often do all three.
Because doors don't wait — and neither do the people behind them.