Flue integrity failed I'd or at risk

[Stout0607]

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.

 

[ShaunCorbs]

Id

Unless it’s right by a road then a re test is required to check it’s nothing to do with the road pollution

 

[Deleted member 120897]

Could be either or, but definitely ID

 

[Last Plumber]

Why has it failed? as in what's the cause?
I would be looking into it further.

 

[Knappers]

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