try the thermister mate, only costs a few pounds it was what was wrong with mine. Hope this helps
dunga
January 2009
Is the pilot light lit? If its not, the burner can't start. Usually you press and hold the start button, and press the igniter. Hold the start button down for a few moments to allow the flame to establish.
John
January 2008
I can answer this question...
how can i fix my boiler Potterton performer 24 the boiler flame want ignite?