valliant boiler user manual/instruction

Hi all, I've managed to make inroads in to sorting my electrical system and am now after info regarding vailant gas boiiler operation plese..
If anyone has an instruction/oprastion manual they could scan or point me inthe right direction I would be most grateful.
While I'm picking brains - I've noticed my extractor fan has stopped working and I was wondering if anyone has tips or ideas of how to rectify this please.
thanks in advance or all your kind help and advice.
Andy

if you go on valliant web site you should be able to down load the manuel or ring them and may send you one!!