I have just replaced the PCB on my Glowworm micron 50FF but the boiler does not light. The old PCB appeared to be burnt-out and had 6 orange neon lights. The new PCB has 2 green neon lights (told it was an upgrade part). when the boiler power is switched on the boiler tries to start now (i.e water flow and fan), but after a couple of attempts the "Reset" light turns solid green and the "Burner on" light starts intermittently flashing green? can any one advise want to check / do next.

Baz, February 2007

I got a plumber to look at it and found out that I had connected the terminal from the spark electrode to the incorrect terminal on the PCB. should not have been located on the spade next to the jumper but on the spade terminal within the top of one off the relays.

Baz, March 2007