just had engineer in told me that the board was knackered power not going out from board to pilot/fan , had to change fan last year and boiler only been in 3 yrs
Get in touch with consumer rights, if it is of a reputable make then you may actually get it repaired as it is not fit for purpose for the quality of the product purchased. If its a cheap and nasty then you got no chance.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.