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  1. H

    Potterton Suprima 30

    OK noise now consistent with kettling. Tried to drain water out of E/F cistern via drain cock just above boiler on return line, nothing came out when fully open, not even with pump running :( . Drained enough out through the lowest Rad bleed screw to get "Sentinel X200 x 1ltr into feed...
  2. H

    Potterton Suprima 30

    Not kettleing then
  3. H

    Potterton Suprima 30

    The boiler is 14 years old, what does kettleing sound like? Pump is on speed 3, could it be the pump wearing out reducing water flow?
  4. H

    Potterton Suprima 30

    I have a potterton Suprima 30 boiler that makes a noise like a steam train when the gas is alight it still heats hot water and CH, but the noise is constant and regular ie not random. No sound effects unfortunately bu tif you say this you'll get the idea gas on, Chuff Chuff Chuff Chuff...
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