High ratio reading on analyser

[hammers4spanner]

Had a landlord cert which showed a ratio above .0800 and ppm's over 9000 .

Changed the flue , still same reading , changed gas valve still same .
Clean out and inspected chamber still the same.
Pressures checked on llsc .

Apart from it nigh on wrecking my anslyser.
Getting to point of why still getting this reading ?

 

[ShaunCorbs]

What boiler?

 

[hammers4spanner]

Ariston e combi

 

[ShaunCorbs]

Gas valve set up right and did you get 9000ppm with the cover off ?

 

[hammers4spanner]

Got 9000 with cover on .
New valve put in after I checked new flue

 

[ShaunCorbs]

Test with cover off

Hex might be leaking so poc are mixing with intake air

 

[jonnyswamp]

Analyser calibrated? did you try another

 

[hammers4spanner]

Yes recently calibrated

 

[Allgoode]

It wasn't a Kane by chance.

Had mine re-calibrated last year & when it came back the temp sensor was reading off the scale at several hundred degrees even when just holding in hand.

Needless sent back and was sorted but messed me up for a week on booking waiting for it to come back.

Maybe try in your own boiler to cross reference it or willing customers boiler that you used it on pre-calibration.

 

[Gary80gas]

My sprint v2 wouldn't read that high, it flips to warning messages and sound at about 400-600ppm. I agree check calibration on another boiler, ive had to do this before now.