We have bleed EVERY radiator in the house and most of the upstairs rads wont heat up. And i have looked over the furnace a hundred times and i can not figure out how to add water. Have even searched online and can not find ANYTHING to help! The serial # is 06C3-2003 if this may help!!
Your boiler should have a make up water line that feeds automatically. Look for a water line going into the boiler. There may be a shut-off valve that has been closed. You should only have to bleed the uppermost radiator to get all of the air out of the system. Is your pump working correctly?
