Further to my last question (340). I can hear the igniter clicking but it doesn't light.

Brian, April 2009

Hi
You say its sparking but no ignition.
This means there is no gas to the burner, the ign & gas valve get power simultaneously once the air pressure switch is satisfied, if you have paid the gas bill there should be gas to the boiler.
The gas valve is not opening and should be replaced.

Gasanova, April 2009