I have come across a boiler with no voltage to the fan from the P.C.B. Was wondering if any of the experts could throw some ideas my way as I am no expert on these boilers. Switch on, call for heat, pump runs, thats my lot. We were called to it because it kept dumping water, so I had thought that it would be a fairly straightforward job, how wrong I was. Have tried a new board B.T.W.
