Have new control board, boiler led lit, fan runs, fan led, lit, no spark at ignitor, can this only be faulty ignitor or can soething else stop ignitor from operating.
Thanks for the suggestions. but fan is running and the pressure switch has operated. According to manual the next stage is the ignitor should start sparking, but it does not.
bobever
January 2010
It may be your pressure switch, or simply the impellor on your fan needs cleaning.
Henry
January 2010
possibly fan not running, or not running fast enough, or faulty air pressure switch (or kinked air pressure tubes common on this boiler)
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.