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newagegasman
I have this problem with the above boiler, i have changed the pump flow switch, the right hand pcb and the Flow thermistor above the pump. I have tested everything for power the fan etc but nothing. The only thing i can think i can be is the left hand pcb which controls all the thermistor side is gone. i have no lights on the left hand side whatsoever. any other gas engineers out there had this problem and can help. cause the left hand pcb is 110 pound but its the only thing i can think it can be. any help would be appreciated. quite expericed in ideal boilers if you wanna trade info. cheers