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Recent content by stevecase51

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    Testing emails

    Got the email
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    PEX barrier pipe – can anybody answer this?

    I have a question that I’m hoping those of you who are experienced central heating engineers may be abler to throw some light on. But first I need to tell you about my system, and the problem I’ve been having. Just over 7years ago I had a new CH system installed in my small semi. I say new – in...
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    Vaillant "Service Heat Generator" Message

    Thanks for that - it's now sorted.
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    Vaillant "Service Heat Generator" Message

    Update: I discovered the relevant setting is in the VRT350 installer level menu. The service date was set to today (I've no idea who did that). I just set a new date next year, and that fixed it.
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    Vaillant "Service Heat Generator" Message

    I had a look at D.084 (Maintenance indicator: number of hours until next maintenance). It was set to "---" (i.e. deactivated. I tried setting it to a value (which made no difference) and then put i back to "---" The controller still shows the spanner message.
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    Vaillant "Service Heat Generator" Message

    I have a Vaillant Ecotec Plus combi boiler that was installed just over 6 years ago. It has been serviced annually, the most recent service being about 2 months ago. The controller is a Vaillant VRT 350f wireless type. Recently a spanner symbol and a “Service Heat Generator” message have...
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    Corrosion problem in central heating system with standard plastic piping?

    That's interesting. Perhaps what's happening in my system is nothing to do with plastic pipes.
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    Corrosion problem in central heating system with standard plastic piping?

    The filling valves are both closed so I don't think fresh water is entering that way.
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    Corrosion problem in central heating system with standard plastic piping?

    What tends to happen is that the tallest upstairs radiator has to be bled two or three times during the first couple of months after draining & refilling, and then no more air collects. Once that process has finished, the boiler pressure is steady - i.e. the system doesn't need re-pressurising...
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    Corrosion problem in central heating system with standard plastic piping?

    Thanks for that. I plan to check what's printed on the pipe as soon as I can find time to lift the floorboards. I can't think where else air could be getting in. Also I don't have air collecting in the radiators apart from during the first few weeks after draining and re-filling the system.
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    Corrosion problem in central heating system with standard plastic piping?

    Thanks - so that seems one good reason for sticking to copper?
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    Corrosion problem in central heating system with standard plastic piping?

    When you say it's normal, do you mean that having to add inhibitor very regularly is normal with plastic pipes?
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    Corrosion problem in central heating system with standard plastic piping?

    Five years ago I had a new central heating system installed. The pipework for two of the radiators was done in plastic, running under the floorboards. Although the system was dosed with plenty of Sentinel X100 inhibitor, after about 18 months the water suddenly started to go brown, and I had to...
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    Help needed with Geberit flush pipe seal

    Just to complete the story on this, I thought I would say what I did in the end. I realised that I couldn't get the flush pipe out (to renew the seal) without removing the WC pan. Also some plumbers reckon that the seal is not very reliable. So I didn't fancy going to all that trouble (or paying...
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    Help needed with Geberit flush pipe seal

    Thanks (that's what thought) but my first problem is how to release the rubber seal & clip. Do I need to prise the clip away from the boss somehow? With the pan and cistern in situ, I would be working blind so that could be tricky. Or can I just give the pipe a good tug downwards? Or is there...
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