my friend has had a new pcb fitted to his 105e boiler but was told that a jumper on it did not come with the pcb to let the internal hot water heat up(when the tap was turned on befor there was instant hot water) now it takes a while befor the hot water gets to the taps, can any one direct me to a diagram as to where the jumper was soposed to be as we cant get back in touch with the plumber that fitted it many thanks