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Tony, I was hoping to narrow it down to one thing - I dont have the cash to just replace this that and the other in the hope it might be that particular part. If I shelled out on the flow switch and it turned out to be something else..........I would've been a bit cheesed off to say the...

Thank you Gasguru, The photo's have helped a lot :D Last Friday evening, about 11.30, the boiler was doing exactly what you have described - red light on constantly but no hot water taps running. Think it could be a dodgy flow switch. Will try that test, I'll let you know how it...

Hi all, Forgive me if I'm being totally thick here.......This is my first house and apart from my Father's experience, I'm a complete novice. I read somewhere that the black switch on the circuit board could be out of adjustment, when I took the cover off the boiler, there was a black...

Can I ask, What the dhw microswitch is, what it looks like and can it be adjusted by a novice such as myself??

Thanks everyone, Think I may have to give in to it and call an engineer out......sounds just a bit too technical for me. Was hoping to be able to sort it myself but it may be more cost efficient if someone looks at it who actually knows what they are doing :lol: Thank you for your...

Would this make the central heating come on though??

I dont have a thermostat in the house, I was considering adding one but, not as yet.

Hi all, Can anybody throw some light onto a little problem please?? I recently moved to a new house where I have a Potterton Puma combi boiler installed. All has been fine up until a few weeks ago.......... For absolutely no reason at all, the boiler will fire up and I will get FULL...