Combi Boiler losing pressure

magn8p

Thank you all for our kind response. From what I read here, the sound I hear after heating is not water droplets due to leak but the pipe expansion noises.

I spoke to my neighbour who has the same make and model combi boiler and she said that she had a similar problem over 2 years ago and that the pressure would drop 3 - 4 times a day. And after several months of debugging, BG found a very small leak in her boiler - so small that it wasn't noticable.

So, I have decided to get my boiler serviced this weekend to figure out what the issue is.

My home insurance covers "trace and access" - so if it is down to the pipe leaks, I will speak to the insurer.

Thank you all, once again.