"sro" wrote in message
...

"IMM" wrote in message
...
What went wrong?
See my post on this thread of system v system.

The faults I found and rectified were :

filling loop valve leaking so system allways being topped up

The filling HAS to be disconnect - not a fault of the system.

pressure vessel diaphram split

Could have been caused by the filling lop always being connected

the dump valve jammed open

Debris. in-line stainers can solve that.

It was my girlfriends house.
Not sure what caused what because the friendly corgi bloke had been round
a
few times to "sort
out problems" - I'd guess that was the boiler switching off due to low
pressure. I reckon he charged the
big callout fee to just re-pressurise and hit the reset button......

It was the first time I had seen a combi - I was lucky that the pressure
vessel change on that model
was easy, apparently some of them make this really awkward.

My house has a very old and simple back boiler and I dread the day I have
to
replace it because
everyone I know with a modern system has loads more trouble than I've had
in
the last 18 years.
In addition, as with most things, manufacturers try to make money by the
servicing, so devices
are designed to be non-user servicable. Just look at cars - main dealers
charge close on
200 quid for little more than an oil change in the south east......
If I could buy the same old fashioned boiler again I definitely would.

Old boiler designs are very inefficient. See the thread on the Potterton
combi too. If you buy a quality product and have it installed correctly
then you will expect 20 years from it.




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