Hi all ive a coffee perculator to look at for a friend,long story short,the heating element relay wont pull in,its a 12v one,from what i can see its powered from the mains via a few diodes and caps,if i remove the relay from the board the 12v feed to it switches from the control board ok,if i send the on signal to the relay pcb pads then conect the relay it pulls in ok,but it wont switch on if i connect it before sending the on signal,ie send the on comand then connect the relay and it pulls in ok,conect it then send the on signal and nothing happens,its like its not getting enough current to pull in,ive tested the caps and diodes,they seem ok,any ideas?