> constantly pressing the close door button, this breaks the lift
I'm not sure I understand the argument? Why does this break the elevator? Why would a built-in button crashing the elevator not be considered a fault?
I'm not sure I understand the argument? Why does this break the elevator? Why would a built-in button crashing the elevator not be considered a fault?
It doesn't
> Why would a built-in button crashing the elevator not be considered a fault?
The manufacturer was trying to get out of a warranty claim, hoping the customer was naive enough to believe their story.
To be fair, I worked in the service industry for many years (as a controls technician), and I had many co-workers who intentionally set up long cons like this to stay busy. They would come up with equally outlandish reasons for why they needed to keep going back and upper management was mostly clueless as to how ridiculous they were.
1) Buttons themselves have on the order of hundreds of thousands to millions of presses expected before any form of failure could begin to be expected. OPs story of a new lift failing would not even come close with a person standing there 24/7 mashing the button
2) A button failing would be just that: a failed button. Not an entirely failed control system. One would assume the button to be a Normally-Open activation, such that continuity in the circuit is achieved when the button press occurs so a failed button would look to be like a button that hasn't been presssed anyway. I'd be happy to be corrected on this, but a Normally Closed button is often only really used for safety sake where a break in the line, loss of voltage, or a button press are all treated equally by the control system.