pressure loss leak central heating

I have a pressurised heating and hot water system, recently I discovered alot of air in the radiators but no sign of leaks anywhere such as damp patches on the walls or anything. I recharged the system adding some more protector fluid. About 4 months later I have the same problem again with a...

Hi, The pressure in my boiler keeps dropping. I've had to repressurise once or twice a day for the past few days. Obviously this isn't right so I'm looking for advice on what the issue could be. The boiler itself is new and was only installed around 6 months ago so I don't think it is that. It...

Would appreciate some guidance/advice to see if I'm on the right track... I'm trying to rule out all possible causes of my central heating system (system boiler incorporating circ. pump & expansion vessel) losing water pressure. These are my thoughts (and observations) so far. Am I missing any...