have tried all them still no joy,electrodes are not sparking, boiler goes through sequence then goes to lockout
dave, November 2007
I had the same problem British Gas came today and fixed it, there was a blockage in the tube
deb6789, November 2007
Most probably is the APS. Check that there is voltage from the board to the switch, check AP tubes are intact and venturi's are clear of obstruction whilst your there.