Recent content by Jordylee

  1. J

    POTTERTON PERFORMA 28i hot water problem.

    Thanks everyone for the replies. It actually turned out to be the Automatic By-Pass valve that sits behind the DHW diaphragm on 28i. So even though the main diverter valve assembly had been replaced and the Pressure Differential Valve was working and switching to hot water, the boiler was only...
  2. J

    POTTERTON PERFORMA 28i hot water problem.

    Thanks Picasso. I'll look at that for sure.
  3. J

    POTTERTON PERFORMA 28i hot water problem.

    Thanks DP. You are referring to the primary heat exchanger? As well as the whole system? In your experience can this be sorted or improved with chemical flush etc or component cleaning/replacement?
  4. J

    POTTERTON PERFORMA 28i hot water problem.

    Can anyone help? I've got a Potterton Performa 28i with a Hot water problem. The boiler switches to DHW fine, all lights correct and no faults indicated. The boiler fires and indicated temp rises to 80 degrees but the water remains lukewarm unless you turn the flow down to a trickle - (I’d guess...
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