I have sparks and gas but the boiler often takes up to 10 cycles to light. This is intermittent, but more often than not now. Always lights with a match !
If you have a balanced flue, often the draught flowing through it makes lighting difficult - however its possible that the gas jet is just a little too far from the spark igniter - and this gap is adjustable, but you'll need to speak to a corgi gas man to have it set.
John
November 2007
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