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    Loud squealing noise from sealed system – expansion vessel?

    There's no noise when running water from the taps, and the Megaflo is 10 feet away and definitely not the source of the noise. The noise is coming from left of the boiler, where the expansion vessel, pump, and filter are located.
  2. H

    Loud squealing noise from sealed system – expansion vessel?

    Has anyone ever heard this noise coming from a sealed central heating system? See - The noise reminds me of air escaping from the neck of a balloon. It happens almost daily, for a minute or so, normally while the hot water (Megaflo) is on (heating is off as its summer). I can partly stop the...
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    potterton suprema 40 problem

    Hi, SPS Plumbing - did you find the details of the company in Watford that can supply recon PCB's? I also have a Suprima cutting out... Thanks.
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