Hi, Just in case I thought I'd better let you know I sussed it.
The key turns the water off, especially if you turn off the boiler. And the square tap at the side of it fills it......simples.
Hi, can anyone assist me in draining down a Worcester condensing combi boiler as I need to tap into the existing pipework to connect up two resited radiators. I can see from the instruction manual that there is a plastic key which is currently inserted in the slot and there is a small white square p...
