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    Boiler Losing Pressure - I can see dripping from a valve

    Final update on this one for anyone else wondering / who looks at this at a later time - the valve was indeed the wrong way round. BG came today and immediately said it was likely to be that. A quick change and it was all resolved. Picture attached! Needless to say there was no charge involved...
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    Boiler Losing Pressure - I can see dripping from a valve

    Hi - I can confirm that the flow does indeed go from left to right (the pipes are labelled!) The drip has stopped already and I have ran the boiler at least 5 or 6 times since yesterdays message so I am happy that its not leaking under hot or cold pipe conditions. I think (correct me if I am...
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    Boiler Losing Pressure - I can see dripping from a valve

    I have checked and cannot see any directional arrows on the brassware, either on the top or underneath. I have provided a picture of the valve as well as the motor, both of which were replaced when BG visited around March / April time. The heating obviously hasn't been on much until recently...
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    Boiler Losing Pressure - I can see dripping from a valve

    Quite possibly CBW. This was also replaced by BG a few months ago (in fact they did it twice as the original work didn't stay working beyond their original visit). The valve was getting stuck open. That appeared to have been resolved as it no longer stays open after the heating runs. I have...
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    Boiler Losing Pressure - I can see dripping from a valve

    Short update on this following the BG visit yesterday. Both my internal expansion tank (in the boiler) and the external larger tank were fixed yesterday. I was surprised to see the tanks were pressurised using a basic foot pump! I was told both tanks were completely empty of air, therefore full...
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    Boiler Losing Pressure - I can see dripping from a valve

    Just a short update on this - I have had the heating on a couple of times today (no hot water) and have had to top the boiler up on both occasions, with it dropping to zero bar. Not sure if that makes any difference to the comments above. I have raised a case with B.Gas who are coming out for...
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    Boiler Losing Pressure - I can see dripping from a valve

    Thanks Ianmcd. As a side issue, I have also noticed very recently that when the heating stops, there is a bang. Pretty loud, like its coming from the inside of the boiler - like a single hammer strike to the metal casing. Is it possible this is related to the pressure issue? As the boiler is in...
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    Boiler Losing Pressure - I can see dripping from a valve

    Yes, as per my latest update I dont recall anyone ever checking this over the years (just the boiler) despite using various big name energy providers and local trades too!
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    Boiler Losing Pressure - I can see dripping from a valve

    Thanks oldbuffer - if this is not something I can safely look at myself, that's all I need to know and wont be messing around with it. I have a British Gas service agreement which will cost me £100 or so for the callout. I dont think they (or any of the other companies who have maintained it...
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    Boiler Losing Pressure - I can see dripping from a valve

    It has been running for an hour now and it was up to 2.75 Bar approx. I normally have it just over 1 bar when cold. It was not dripping with water when I looked so it doesn't appear to be happening at "peak pressure" if that helps. ** EDIT - based on oldbuffer's reply, it would appear its not...
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    Boiler Losing Pressure - I can see dripping from a valve

    Hi, I have a Worcester Greenstar 30CDi boiler long with a separate hot water tank. I have noticed in recent weeks that the pressure is dropping to zero almost daily after the CH has been running. It doesn't appear to drop when just the HW schedule is on to heat the water tank. I can see there...
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