Leaking boiler - can I fix it?

Can you DIY it? Yes if you are capable.

You don't even have to drain the system - I'm guessing that the 'flow turbine' is a flow switch to tell the boiler to come on to heat your DHW whenever a tap is turned on? In which case all you need to turn off is the mains water inlet to the boiler, and then open a hot tap to release the pressure. (But get ready to catch water that dribbles out...)

If it's part of the CH circuit, then all you have to do is turn off the isolators on the flow and return pipes. But I'm pretty sure it's chust the flow switch, and most modern boilers have nifty 'push' clips to secure these sorts of parts.

Is the leak from the body of this switch or from a pipe connection? It really shouldn't leak at all, and the fact it does would suggest either a 'crack' in the body somewhere or else a damaged rubber O ring at a pipe connection. So I'm guessing you won't be able to fix it without replacement seals or a whole new part.

Not sure what size seals these'll be either...

 

Joy

 

Firstly dont drain the entire system when you can isolate and drain the boiler itself. Your manufacturers instructions will tell you in great detail how too do this. As DA says isolate all the supplies then drain the boiler and you can literally take the thing apart. Word of warning though, havean old towel to hand and protect the electrics, even though you think you have drained down totally, being a Worcester you wont have done, there is always residue water left behind.

 

Leaking boiler, can I fix it?

Leaking boiler, yes you can.



I'll get my coat!

 

I'm guessing only the DHW side of the boiler is concerned here? So shut off the 15mm mains inlet to the boiler, open a hot tap for a second to release the pressure, and fire away.

With lots of towels...

And make sure the 'O' rings are an exact replacement...

 

£22?

Replace the whole darned thing, you cheapskate...

 

You should have bought two - for the one you're def going to c***-up...

 

Yuo'd better not cock it up mate,or I can see your wife wishing you luck as she watches you wander down the drive suitcase in hand.lol

 

Press the pipe ends firmly (without breaking anything...) in to the flow switch before pushing in the securing clips. If it's fiddly to get access (as it was on my GlwoWorm), then it can be tricky to know you are pushing it square and tight enough before the side clip slips in.

The first time I did this (flow switch...) the clip was catching the wrong side of the pipe end's flange. The jet of water coming from the boiler when I turned the water back on was really quite impressive...

 

On second thoughts, I'm wrong...

If you know for sure that the leak is from, say, that easily accessible end, then chust undo that, clean it and replace with the correct new O ring.

You can always go further if this doesn't work.

Nope, no idea why there's extra fixings, but your thought on this makes sense. That'll explain why I had a couple left over too - and couldn't sleep for a week worrying about it...