wally wrote:

Our old combi boiler was replaced in December because the water
jacket
was leaking & could not be repaired [ Grant Boiler], soon after
fitting the pressure dropped again, Engineers came & found a small
leak.

Did the old boiler also have a sealed system, or was there a header tank
for it in the loft?

Converting to a sealed system can result in the heating circuit being
more highly pressurised than previously. One thing that often gives out
are old lockshield valves. Were any radiator valves replaced?

One again the pressure is dropping, i am now told itmust be a leak in
the house, probably under the floor boards & nothing to do with
them .
The problem did not exist before the new boiler was fitted

Which is to be expected on some older systems...

On top of that i have now also had an account for commissioning the
boiler, this was not done at the time of fitting.

Did you pre-agree a all in price for the work?



--
Cheers,

John.

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