I have a Glowworm swiftflow combi boiler (can't remember the model but it is the smaller one) and had no problems until a few days ago.
I decided to bleed the upstairs radiators as the tops were a bit cool, and in doing so needed to top up the system, which I did. Unfortunately, a few mins later when I turned the cold tap on at the sink I discovered that we had some water main works done and there was air in the cold water feed, which I topped the boiler up with!!!!!
I bled the radiators several times but I now have a pressure swing from 0.8 bar cold to 3 bar hot and some noise from the pipework, difficult to say whether it's air or kettling but the boiler is quiet so I guess its air.
Any ideas? is it still trapped air of have I somehow knackered the pressure accumulator? (the only time I have seen this sort of pressure swing was when there was a knackered accumulator) it was all fine before I bled the radiators and introduced the air from the cold feed!!!!!
Any ideas?
I decided to bleed the upstairs radiators as the tops were a bit cool, and in doing so needed to top up the system, which I did. Unfortunately, a few mins later when I turned the cold tap on at the sink I discovered that we had some water main works done and there was air in the cold water feed, which I topped the boiler up with!!!!!
I bled the radiators several times but I now have a pressure swing from 0.8 bar cold to 3 bar hot and some noise from the pipework, difficult to say whether it's air or kettling but the boiler is quiet so I guess its air.
Any ideas? is it still trapped air of have I somehow knackered the pressure accumulator? (the only time I have seen this sort of pressure swing was when there was a knackered accumulator) it was all fine before I bled the radiators and introduced the air from the cold feed!!!!!
Any ideas?