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hi again, thanks for your help, just had someone out to look at it (central heating engineer) friend of a friend hence rapid call out, he has told me its the pcb board as the pump is getting nowhere near its required voltage, he tested it with some sort of meter at the pump and at the boiler...

hi, thanks very much for the advice it's much appreciated, however I have spoken to an electrician friend who said to test the pump by removing programmer wires from pump and supply a live feed directly to it from an extension lead to see if the pump started, I did this and the pump operated no...

Hi All, Let me start by saying i'm no central heating expert, but have a basic knowledge of my system, I have a halstead best boiler operated by a potterton ep2002 programmer and a grundfos pump, the other day the pump stopped working so i assumed the the pump needed replacing as the boiler...