Job was in Clifford Gardens, Kensal Rise NW10. Boiler is not coming on for neither hot wator nor heating. The circulator pump is running but nothing else follows. I checked but no power is going to the fan. Is the Air pressure switch stuck at Normally Open…..Well.. no.. Because I checked it. If the pump is running then there is no interfearance from the overheat stat. Well whatz going on… Pcb found to be a reconditioned one dated 29.01.2009… from . client said that another engineer installed it less than a year ago…Okey then I will leave this job to the same engineer. But if you want it…A new PCB is about 100+ VAT for this and ofcause Labour has to be added to complete the work : 0