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  1. S

    Potterton Powermax - Pressure difference & lockout

    Kev , Thanks for the quick reply. As far as I know the anologue gauge is working , if you open the filling loop taps it registers the increase in pressure. Cheers Supaned
  2. S

    Potterton Powermax - Pressure difference & lockout

    Hi , I have a Potterton Powermax HE combi boiler , now 3 years old , which is suffering yet another fault. I've had the main control board replaced by Heatteam literally 12 months ago. The current fault has me baffled: With the HW on timer , and working normally , we have the CH on "ON"...
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