O rings won't seal

[mydiy]

Hi, I recently moved house and inherited a Ferroli He plus 31c. It was found to be leaking when I had it serviced and consequently needed repair to the sum of £400.00. This included a full set of o rings as the plumber was unable to source just the two I required. With a new heat exchanger, return flow sensor and pressure relief valve I was up and running well almost. The two replacement o rings also leaked and the gas engineer spent some time continuously applying sealant to stop water seeping through. Eventually one stopped altogether while the other also needed some special tape - opaque and rubbery looking. Fast forward a couple of weeks all dry, then after four more he came back and put the cabinet on, it needed a shove and yes you've guessed it, now leaks as before and return flow sensor fault already showing on panel. I have no heat or water but can manage for a few days. I know its a Ferroli and he did tell me it was a bad make but I simply do not have £3000.00 to replace. It will take me at least a year to find it so although I understand the best advice is to replace I can't do so. The cabinet is tricky to put on I've seen him do so and I can see why it affected the o rings. Is there a knack to getting the cabinet on? Is there anything that could create a good enough seal so that it can take the bump? Or alternatively as I have a full set of o rings could any of the others help in some way as in "Houston we have a problem". He will be back from his break on Monday and he is a very nice man but I believe he will be fresh out of ideas, so I'm going to attempt some light diplomacy if you have any ideas. Otherwise it's cold showers this winter. The o rings cost 75.00 so I do have everyone all shapes and sizes. The engineer told me that the points where the o rings fit are slightly out of alignment and that is why they leak. He is corgi reg and knows boilers so I do not doubt his competence, he is also very popular with all the neighbours. The boiler is now switched off, and apart from this leak problem has worked well in all other respects. There are three pics in an album called boiler but I can see no way of actually adding them to the post.

 

[Agile]

He seems to be seriously over charging you.

I don't know where you get the figure of £3000 for a new boiler. I can fit a good make for less than £2000.

In fact a replacement Ferolli would be not much more than £500 and only take about an hour to swap.

Tony

 

[mydiy]

He seems to be seriously over charging you.

I don't know where you get the figure of £3000 for a new boiler. I can fit a good make for less than £2000.

In fact a replacement Ferolli would be not much more than £500 and only take about an hour to swap.

Tony

Thanks Tony, I have had three quotes so far between £2800 and £3200 and my current boiler engineer is so far the cheapest. This does include a fee for system flush which I understand is also required.

 

[Agile]

What do you think a "system flush" means?

I cannot imagine where you live to get such high quotes!

Mine at less than £2000 are often not accepted because the cheap guys charge less than me. ( Not the same quality and attention to details of course ).

 

[Dan Robinson]

Tony - why don't you go and do it for those prices?

 

[Agile]

I doubt he is in my local area where most installers fit boilers for £1500 or less.

 

[DP]

Mydiy, can you or your installer see where the leak is?

The joints need to be clean before new O ring is fitted. There is no need for sealants or 'special' plumbers concoctions when reassembling

 

[petit_pablo]

£3k to replace a condensing combi, FML BG will do it cheaper than that if its a simple swap!

Ferroli are hateful creature that are prone to leaking, where is is actually leaking from? It is possible to stop then leaking ive seen it once or twice lol.

 

[Storms]

In my experience the seals and washers supplied with boilers are not the thickness and diameter you find in standard high street packs. Really the guy should have sourced genuine washers and o- rings specifically for the boiler rather than just buy a pack of assorted ones

Also agree that if he uses the right size washers there will be no need for ptfe or other things. However if it's an old boiler he should deffo clean the thread and nut of the joint with steel wool or similar before tightening

 

[Dan Robinson]

And your experience of boilers extends to how many?

 

[Dan Robinson]

@Storms, pursuant to your last pm (you're blocked from sending me anymore by the way), I'll stop "riding your dick" as you put it when you stop giving advice you are ill equipped to give.

 

[Storms]

@Storms, pursuant to your last pm (you're blocked from sending me anymore by the way), I'll stop "riding your dick" as you put it when you stop giving advice you are ill equipped to give.

But what's wrong with that advice? give me a counter opinion rather than throwing insults. I am likely to fold as you are a pro and I am not.

 

[Dan Robinson]

I asked you what your experience of boilers is.


Is it just the one you illegally and poorly fitted?

For crap advice, see your thread on the Vaillant boiler.

 

[Storms]

I asked you what your experience of boilers is.


Is it just the one you illegally and poorly fitted?

For crap advice, see your thread on the Vaillant boiler.

calm it down san, lets not throw words like 'illegal' around hey, we both know the law allows competent workers on their own supply

 

[mydiy]

Yes I can see where the two leaks are and I have posted pics in an album called boiler