The boiler is approximately 9 years old and has been gradually dropping pressure over the last couple of years.
Originally I had to top up every 3-5 months and this has now reduced to a weekly basis.
At the last service the engineer could not find any leaks in the system or rad joints. He replaced a boiler part, I think it was something like a pressure vessel but this made no difference.
The image shows it fully charged (by accident) , but it is normally kept in the grey area.
Can anyone help please.
Originally I had to top up every 3-5 months and this has now reduced to a weekly basis.
At the last service the engineer could not find any leaks in the system or rad joints. He replaced a boiler part, I think it was something like a pressure vessel but this made no difference.
The image shows it fully charged (by accident) , but it is normally kept in the grey area.
Can anyone help please.