Vokera Excel 80SP - same as I still have in the flat next door.What was the original boiler and what was it replaced with? What was the NCS for?
The service sheet didn't say - it just said something along the lines of "some things aren't to current standards". Having got intimate with the plumbing in the flat (it now has a thermal store), I've a good feeling for how the guy that installed these worked. I can see exactly where the old boiler was (patched up holes for flue etc), and cannot think of anything that wouldn't be to current standards.
Except for one thing - it would have been an old non-condensing, pilot light, boiler when condensing, electronic ignition, boilers were becoming the norm. I suppose that could be enough (if you are being dishonest) to claim the boiler needs replacing.
As someone called it, sound very much like "spook a granny" technique.