A point that has been made previously.
I imagine that whoever built the Temple had roughly the same grasp on the limitations of technology as they did on its history. IOW: 'not a problem, we built it to work forever' 'but...' 'you mean you don't know how to build things? you said...'
Between redundancy and effective nanotechnology, I'm sure that the place is good for a very long time - and many of the specific items the OP was concerned about are non-issues because they simply don't exist in the Temple [no sockets or wall plates, for example] - but sooner or later _something_ won't be as redundant as thought, or the odds will catch up with the system and the backup will fail while repairing the primary. At which point, something wakes up that is sophisticated enough to plan, direct and certify a complete overhaul [any system that can do that would be _too_ sophisticated to survive for millennia of continuous operation, from what we're told]. or it doesn't, and the ensuing cascade of failures shuts down the Temple. This is something that could have been allowed for in the Writ, of course, in which case you'll see a meeting of the Council where somebody says 'So that's what that passage in Hastings was about! You know the Order has been debating it for over 8 thousand years now.', and everybody continues tranquilly on their way. Or not, as the case may be - without the living, miraculous Temple, the Church is ultimately doomed. I suspect that Chihiro or whomever realised that, whence the Temple in the first place, but still adhered to the notion - the fallacy - of one man being able to impose his will on time and history.
BTW, I don't have electronic copies either, but IIRC, the repair mechs are mentioned somewhere in the 1st - 3rd books, in a scene where someone [possibly Duchairn] is walking down one of the main corridors of the Temple. I thought that the term 'servitor' was used for them, but that must not be correct.
JeffEngel wrote:AirTech wrote:A continuous production line of fabrication systems making replacements for themselves would be certainly be required for operating periods longer than a century. A large cavern full of hardware under the temple would not be unlikely.
You know, if the Temple systems started failing, it could provoke a serious crisis of faith in the power of the Archangels and/or God's continuing care for Safehold. That could be... the Church's darkest hour. Maybe the Thing under the Temple, to awake in 1000 years or when a Wylsynn goes knocking - is a tech support angel, there to do some maintenance on the Temple.
"You have a schism? War across Safehold? Jihad?! Dude, that is NOT my department! Now please, just let me back into the server room, okay?"