The lockout light is on and the heating won't turn on, PLEASE HELP?

check the pressure first, there's a gauge on the underside on the right. pressure should be between 1 & 2. if that's ok and the boiler actually fires up, even if it's only briefly then the pump probably needs replaced. the boiler can lockout for many reasons, but usually overheating (or ignition faults if it's the version without the pilot)

Ian
December 2009