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    Ideal combi 30 boiler - odd noise. Please listen and help if you can

    Just as an update. Those who thought it was the diverter valve or venturi, WRONG! It was simply the opentherm ESI ESRTP4RF+ that was the problem. Apparently these controllers are nothing but problems. He fitted a wireless room thermostat instead of an opentherm one, and it has worked...
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    Ideal combi 30 boiler - odd noise. Please listen and help if you can

    Thanks for the response. No apology needed. I asked him that just now. He said that otherwise you fill the ''syphon trap bottle'' with all the debris, which then takes quite a while to flush out. Which makes some sense to me, but I also get why you could do it in situ. But he also said it is...
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    Ideal combi 30 boiler - odd noise. Please listen and help if you can

    @kidgreen61. Wow. That was a bit harsh! I was chatting with the guy and we were drinking tea as he worked. I have never seen a more professional and decent plumber. He explained what he would be doing, started draining the system down, was concerned not to make a mess or get the laminate floor...
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    Ideal combi 30 boiler - odd noise. Please listen and help if you can

    Thanks Gas112 for replying. A lot! It was a close call between that and a brand new boiler. To be honest, he did say it didn't really need a new burner but that the original one was looking tired and as he had the old unit off and a brand new seled box in the van, it was not much on its own -...
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    Ideal combi 30 boiler - odd noise. Please listen and help if you can

    Thanks Cross Thread - exactly what I thought as it only happens when heating is called. A bit annoying as I saw the guy service the divertor valve as mentioned, otherwise I would not have believed it was done. He fitted a brand new 'service kit' which he even showed me. It had the two end nuts...
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    Ideal combi 30 boiler - odd noise. Please listen and help if you can

    Hello guys. I have an Ideal Combi 30 boiler. It makes an odd noise and I would love someone to say what it is. This ONLY happens on heating, never on hot water. WIthin a few seconds of heating been called, the boiler makes a deep, booming vibration a bit like a low didgeridoo being played. If...
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