the boiler ignites, then locks out after 2 or 3 seconds, i have bled the radiators, filled boiler back upto just over 1 bar, which rises to 1.5 bar on ignition, checked the auto vent, the pump runs ok, the fan and air pressure switch work fine. this happens for both heating and hot water, does anyone have an answer for this??? thanks.

richard, December 2008

sounds like a gas ignition pressure problem the pressures should be checked and adjusted accordingly by a qualified engineer

davie the gas man, December 2008