Discuss Up & Down CO/CO2 Ratio in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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ISM

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Gas Engineer
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Just got back from a breakdown on a Glowworm Fuelsaver MK2, fixed the fault and gave it a good service, as the customer commented it not been done for at least 5 years!! Stuck the analyser and I could not get a reading to stablelise.

I was getting readings of 0.0040, 0.0073, 0.0021, 0.0095 and CO readings generally really high, at one point it was 1982 PPM!!

Burner pressure ok, working pressue ok, burner ok, seals ok, flue ways ok. It was however, slightly windy down the passage where the flue was.

I had to leave the appliance AR and informed the customer I would pop back tomorrow, with the hope that it will be less windy to get a fairer test, but I am wanting to know if anyone has ever experienced this, because as to yet I have not. Also, would these fluctating readings point to a defective part within the appliance?

Any thoughts welcome.
 
firstly is your gas analyzer calibrated, secondly where were you taking test form using you analyzer?
 
Stick your analyser in your own boiler flue before you go back tomorrow.
 
Did you strip out burner and give a good clean? Heat exchanger clean?
Remove flue inspect hatch and clean/inspect flue.
BP sitting stable?
If so would not worry about it too much. As you mentioned strong winds may be causing a bit of fluctuation on your readings.
 
serviced one last wk and had same sinario . stripped and cleaned . burner removed and washed out and cleaned heat ex and flue.was ok 0.0020 until wind blew then went up and down like yours .put it down to the wind effecting the balanced flue.

ant
 
Cant see the point of putting a FGA in a boiler of this age as long as all other readings are ok and seals etc, is it now a requirment to FGA every boiler ?
 
Cant see the point of putting a FGA in a boiler of this age as long as all other readings are ok and seals etc, is it now a requirment to FGA every boiler ?

Agree only time I will put FGA in a boiler this age is to prove to the customer that the boiler is unsafe due to flame picture.

There is too much reliance on FGA now.
 
As above forget fga,s on stuff this old. Flame picture, burner pressure. Job done.
 
Cant see the point of putting a FGA in a boiler of this age as long as all other readings are ok and seals etc, is it now a requirment to FGA every boiler ?
As mentioned time and time again. You have a tool at your disposal that may indicate more than you can actually see.
Sometime flame picture, BP and checking seals etc. don't tell the whole story.
It is poor practice not to take a few mins to use your FGA on every boiler that has a test point or available termination in my opinion.
I know I am using every tool at my disposal to ensure the appliance is operating safely.
 
As mentioned time and time again. You have a tool at your disposal that may indicate more than you can actually see.
Sometime flame picture, BP and checking seals etc. don't tell the whole story.
It is poor practice not to take a few mins to use your FGA on every boiler that has a test point or available termination in my opinion.
I know I am using every tool at my disposal to ensure the appliance is operating safely.

Sorry but I think that I disagree with what you are saying about FGAing older boilers ! how do you think we managed B4 we had to have them ? We used our knowlage and experience, Yes ok for new condensing equipment , but relying on FGAs to deside weather an older style boiler is unsafe I think is wrong !! If the service & inspection is carried out as it should be then the need to condem perfectly good working boilers would stop ! and people would not be forced into buying new units that they can ill afford, uesing fear tactics to sell somthing that is not required I think is somewhat underhanded, and is used far to often by Large & small Co just to secure a sale, This reply is not ment to offend its my personal view point.
 
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