I have a worcester bosch 24CDi RSF boiler. At first the system presure kept building to 4 bars until I released the presure via the preasure release valve and the presure would drop to zero and then build back up again over a few days. The filling loop is definetly off and all the rads have been bled. Now the boiler wont even ignite.(Fan works and pump is bled and working). Does anyone know what might be wrong?

Gary, November 2006

IF THE BOILER FIRED WHILE EMPTY IT MAY HAVE OVERHEATED, IN THE INSTRUCTION MANUAL THERE IS A DIAGNOSTIC CHART WHICH RELATES TO THE LIGHTS ON THE FRONT

BG MIKE, November 2006