we're having trouble with our hot water upstairs, and many boiler engineer visits are getting expensive! The last diagnosis was that it is due to the isolation valves and suggested we removed them from upstairs pipes.
Apparently the water flow is not as high as downstairs, so the when the boiler gets too hot it drops the gas pressure to about 8 bar to avoid overheating. Then you get lukewarm water for a few minutes and then it might go up again.
On downstairs taps the gas pressure is constantly 13 bar.
Can anyone help please? Shall we remove the isolation valves? Can't really see how that will make a difference if they're all open properly... or do you get reduced flow through them?
thanks
Apparently the water flow is not as high as downstairs, so the when the boiler gets too hot it drops the gas pressure to about 8 bar to avoid overheating. Then you get lukewarm water for a few minutes and then it might go up again.
On downstairs taps the gas pressure is constantly 13 bar.
Can anyone help please? Shall we remove the isolation valves? Can't really see how that will make a difference if they're all open properly... or do you get reduced flow through them?
thanks
