Thanks for your reply. I suspect it could be something really simple but I have looked and I don't know. I guess I'll have to call someone.
This is what my boiler looks like.
https://dl.dropboxusercontent.com/u/104757/2014-09-02%2019.33.13.jpg
Hello,
I just moved into a house with this boiler. It was last serviced in June, but I imagine the CH part hasn't been used over the summer. Just before I moved in a couple of days ago, I had some plastering done that involved removing and replacing two radiators. I was told they...