My girl friend's had a problem with her central heating for a good few months now. She's had an engineer out a couple of times and on each occasion he's 'tinkered' with it for a bit and says she needs a new boiler. After his tinkering it works for a few weeks then works intermittently, generally when the weather's not too cold. However the hot water is reasonably warm while the radiators are stone cold.
I bled the system a couple of months ago as the radiator in the spare room wasn't working then it was all fine. Also tried turning the thermostat up/down and and hear it click, it's an old mechanical one. The pilot light for the boiler is on though on some occasions there's a smell of gas coming from the bolier - unburned gas? The boiler is housed in an outside cupboard at the front of the house and the hot water tank is downstairs by the front door. It's a reasonably new house, about 10 years old.
Any idea what could be going on?
I'd just like a few other opinions in the hope that forking out for a new boiler is unnecessary.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!