flue integrity test failed on a room sealed boiler however not effecting combustion and not leaking into room, would it still be I'd or can it be at risk.
I'm self employed so I'd just repair it.
If its failed on O2 on supply air then its usually just a seal (if not atmospheric).
I'd check fall on flue too.
If its minor and I can book it in within a few days then Its not a big deal