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    rccb

    Hi.. I think that you are getting confused between an RCCB and an RCBO, I think that you mean to ask about an RCBO as an RCCB / RCD is for mains switching. If you use an RCD / RCCB then you would use MCB’s for mechanical protection but if you use an RCBO, ( which I believe that you really mean...
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    potterton primera 24 no hot DWS or central heater either

    Hi... I am an electrician .... a client of mine has a potterton primera 24 boiler... its fires up great... burns away like a goodun... but no hot water or heat to the central heating... any ides????? cheers
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