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Hi, I have Worcester combi boiler which has developed a 'fault' recently. When I switch the heating on, the fire in boiler starts for a second or two and then goes off. After another few seconds it starts again and then stays on. This happens around 8 out of 10 times. I had engineer having a...

Hello all. Five years ago a new (undersized) shower water pump was removed after a few attempts to try and get it to work and a larger one was successfully installed. I’ve kept the original pump and am hoping someone might advise if it might work after all this time or more importantly , is it...

Hi. Just trying to get my head around how this relates to the temperature drop across the circuit. Not disputing that the two are related (obviously we measure temperature as that is easier) but I don't understand the process. This came up on another thread and I didn't want to sidetrack the...