High CO2 levels

[RobTheBuilder]

Hi,

I serviced a Bosch Worcester 24Ri last week and also had to replace the PCB and the fan. When carrying out the gas flue analysis the reading was ridiculously high. CO/CO2 0.4216. Has anyone got an idea what might be causing this?

Cheers, RobTheBuilder.

 

[Dan Robinson]

Register for the combustion chamber. No answers for this will be given in the open forum.

 

[Dan Robinson]

And get the boiler turned off sharpish

 

[onlyfitidealboilers]

Yea, and if you don't then you should not be working on it.

 

[RobTheBuilder]

Yeah it's shut down, meter capped and id notice issued. Just need to know what steps I should take next really.

 

[Dan Robinson]

Can only imagine the fga screaming for mercy.

Must have been what? 30000ppm and 7%

 

[RobTheBuilder]

Yeah pretty much spot on Dan.

The hole thing was stripped down and cleaned out. I just can't get my head round why it's like this.

 

[ALEC1]

installed and commissioned by a builder?

 

[CBF]

answers in The CC

 

[RobTheBuilder]

I don't know who installed and commissioned it originally as it was done in 2006, but I'm assured it was installed by a gas engineer.

I'm just waiting for the combustion chamber to accept me.

 

[RobTheBuilder]

It's last service was 16/10/10. The cert says that the initial combustion analyser reading was 10.2% and the final was 9.8% but it didn't mention the ratio. My CO2 was 8%

 

[Dan Robinson]

33010ppm then .

 

[CBF]

33010ppm then .

& a new cell

 

[Dan Robinson]

Leave it on overnight in an oxygen tent and it might recover

Send it to uncle kevin for a bit of R&R though

 

[onlyfitidealboilers]

Check flue and flue seals and gas vlv. Is it ok with case off etc?