Hello, it has 3 pipe connections!
Hi, this may be a bit awkward. But could you check where the electricity comes into the boiler ? To check there is a separate connection for the pump . thanks. there must be a pump overrun on the boiler that may be linked to a stat, either overheat or frost stat, that is faulty .
System flushed, heating wouldn't then turn off, new m/valve fitted which sorted turning heating off, but pump still running. That's it. I'll try the cylinder stat tomorrow and let you know the result. Many thanks for your time and patience. You will certainly be getting positive feedback from me. Best wishes