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Agree that is strange but is the reading I had!

Why does this matter?

Sorry I meant 0.3555 not 3.5555, co ppm were definitely 31000. Using a Kane analyser within seconds it was beeping loudly saying HIGH CO. I stopped talking to the vaillant guy as I didn't agree with what he was saying

just realised what this combustion chamber is...have signed up now thanks

ok to me it all looked fine inside the combustion chamber. I was also told that a crack in the combustion chamber wouldn't effect this? (not saying this is right) but this is was a fellow gasman in my company said. I couldn't see anything wrong with the combustion chamber but in your opinion...

I will check all flue seals tomorrow again, if this appears fine where would you go next?

I will join now didn't relise I could, I don't think its the flue to be honest because the flue goes straight out the wall so there isn't much to check and it all looks fine. I was wondering if possibly a gas valve problem? low pressure or a sticking gas valve not opening? im really unsure as...

hi, I am after some advice from a fellow GSR gasman. I serviced a vaillant ecotec earlier. the boiler was fitted in 2008 and has been serviced yearly. the property has been void for around 10-16 weeks and so the gas has been off at the ecv and the boiler has been inactive the whole time...