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Quick question - I am trying to learn about boiler fault finding. I am gas qualified (since June) and have been working as a plumber for approx 3 years. I am working 1 day a week with a gas engineer (doing breakdowns/gas safety's/services etc) - would it be possible for me to join the...

Hi Just a quick question - most PCBs contain potentiometer's - eg CH or DHW pots - what exactly do these do? I know they can be adjusted but was just trying to work out what they are for? When you turn the CH dial for eg on a combi - does this in effect increase/decrease the...

Question for all boiler engineers/people who have done this.... What's the best way to re-cnharge an expansion vessel? There's different ways to do it - what I do is this: drain the system until the gauge reads 0 - then drain another 10 litres approx from the system - then re-charge...

Hi Just a quickie - I have a Worcester Junior in my 2 bed house - it had a worcester digistat (wireless type that must;ve come with the boiler) with it (was there when I moved in ) - buit it wasn't very good and is now broken (dropped on wooden floor :( ) - I want to install a wireless...

This is a very good website, and I've been searching it for a while now this morning. I enjoy doing plumbing repairs and fault finding, and am trying to learn about boiler breakdown. I've leanred a lot over the past 2 years about boilers and their components, fault finding sequences etc...