my heater has gone off and its not igniting, you can hear the ignition trying to come on but its not lighting or staying on. I have had 3 engineers here but they have not managed to solve the problem, how can the problem be fixed

alim cameron, December 2006

You'll need a good engineer as removal of the combustion chamber is required.

They'll need to check for an adequate spark gap, ensure that the electrodes are generating a spark and that the gas valve itself is opening allowing a small amount of gas to the burner ready for ignition.

I'd seriously consider hiring a reputable gas engineer for the job in question.

GasAid.co.uk, December 2006