HELP! is there something I can do to get my central heating working properly without calling an engineer out ... The water is heating up but the central heating will only come on if I press the button on the far left, which looks like a test setting. Then it fires up, but goes off after a while. I have the manual override setting on and have never used the wireless thermostat and that doesn't even turn on now ( yes I checked the batteries ) But it has never worked, so I don't think its that. The setting on the front is lit up in the 'on' position btw.
Any ideas?
Any ideas?