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Thanks for the responses.
No, I havent gotten it fixed yet, and have moved back in with my parents meantime. I tried to enrol in British Gas' Homecare scheme to see if they would cover it under their maintenance cover, but they didnt turn up!. I also doubt if they would have fixed it for free in advance of taking it on anyway..:-(
I did a bit of investigation anyway, and it seems that there is no power getting to the boiler. The spur fuse is fine, as are all the mains fuses, so by deduction and looking at the info given I am presuming it is a fuse on the circuit board, and I have no clue as to how to fix that or what amperage it would be. (Assuming I can even find somewhere to buy one)
Ideas are more than welcome....