Hi winter is upon us xmas round the corner been off work for 2 weeks as the garage I work for is going through a quiet time & the combo boiler has gone off no heating or hot water . It is flashing a fault code as flame electrode detector as if you reset it goes through self diagnosis & when the IGN sequence starts it goes into lock out . Going to have one of my customers who is a gas safe engineer to change the electrodes tomorrow hope its that as the parts are only £ 30 if its not that it is probably the control panel pcb & that is £175 
