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  • Keep an eye on that though. I had pressure issues at one point and went about solving them this way but the issue was the expansion chamber which had failed, eventually the over pressure valve blew and they often don't seal properly after they've blown.

    I'm probably breaking some rules by pointing out that you can test an expansion chamber even if it's integrated in the combi. Sometimes people replace them as it's a plumbing job that doesn't involve gas. Not sure that's allowed though. Integrated ones vary but mine cost approx £130 a couple of years ago.

  • Not sure that's allowed though.

    It is. You can even do your own gas work if you are competent. You only need to be registered if you are working on someone else's gas. I wouldn't but it's not illegal.

  • Thanks for the heads up. I'll have to look and see what the qualifies competence.

  • Personally I would say some who is competent is someone who has done the ACS and has the relevant qualifications but some of the folk doing it now dont give a fuck which is pretty insane, but you'll struggle to get someone else to sign off on your work as they then take the risk if something goes wrong.

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