I am having a few problems getting my central heating to switch on. It has not really been on over the summer yet I have been using the hot water boiler for baths and dish washing. I have 'bled' the radiators and they do not seem to want to come on. I have a water storage unit and ran the radiators for about an hour last night and 10 minutes this evening to no accord. Should I run them longer or call someone in?

Any thoughts?

Unless you know about boilers it will probably be better and safer to have it looked at by a local professional. Bleeding the radiators is one thing but with the unit not firing that is another. You also have to make sure the pump works etc.