I have a hot water boiler that it almost ten years old and has three thermostats connected to it... Just a few weeks back, the boiler won't fire up the burners when one of the three thermostats calls for heat. Now I am FREEZING and I am afraid that the pipes will burst because they are located outside the house and under the first floor bathroom and uninsulated in a covered hole. I can only feel warm air coming out of the baseboard heaters. The other two can fire up the burners and have no problem.
If you have any info please send it to me ASAP!