I have searched this forum extensively and haven't found a solution to my boiler issue, so if my question has already been answered, please link me to it.
I have a Weil-McClain P-CG-5 boiler heater. It was working fine up until a couple days ago when I noticed it was getting rather chilly in the house. I went down in the basement and checked the pilot. It was on. The water circulates through the house but the burner(s) won't fire up to heat the water. I checked the thermostats and they both work fine. there is voltage at the boiler and to the thermostats. The thermostats are calling for heat but the water circulates but doesn't get warm. It is very cold here in Indiana, and I would greatly appreciate any sort of guidance in repairing this issue!