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  1. S

    Air in central heating - where from?

    it will. I have encountered this problem many times. :shock: maybe you should go out more 8)
  2. S

    Air in central heating - where from?

    if you've diagnosed all these problems the heating should be put down, or maybe buy an airseparator for £15 that prevents what is clealy a massive unwanted introduction of air into the system, the most common coming from the header tank due to poor plumbing design or loss of efficiency in the...
  3. S

    Ariston microgenus boiler:

    secondary heat exchanger blocked?? Try cleaning it. or, thermosistor faulty, or rubber membrane controlling flow switch worn out
  4. S

    Air in central heating - where from?

    install an airseparator on the expansion/feed pipes/flow depending on layout. This will cure your problem.
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