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- 20 Oct 2020
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Hi I've had a cp12 gas safe test done on my boiler and it's failed and he's capped off the boiler because he said that the combustion gases are mixing with the air intake. He's not told me what might be the issue though and I'm struggling to find anyone else referencing this as a possible fail. Would anyone be able to tell me what the possible causes of something like this might be so that I can contact a gas safe engineer to remedy the problem. I would rather know the possible issues/solutions before calling someone in case the solution is more costly than replacing the boiler. Thanks for any advice or explaination of what this could be.