While I respect your right to express your opinion, I must state that your opinion is just as valid or void as the previous. I couldn’t know which. How would I?

Yeah, an incorrect cleaning procedure can cause a error that requires maintenance personnel to reset the error. They don’t need to do anything else though, it’s completely fine to just do the cleaning again. Stuff like that.

It’s probably not an arbitrary explicit limitation just for the sake of it, they’re likely using a cheaper component for the port.