I have a old boiler furnace. I'm having an issue where the boiler
periodically wont come on and the house temperature will continue to
drop. If I turn the thermostat up, the boiler will kick on and will
maintain the set temp for some time but will eventually fail to kick
on again. Based on the fact that I can get it to kick on by
adjusting
the thermostat, I'm assuming the issue is thermostat related but I'm
not sure if the thermostat itself of the sensor...or maybe I''m
totally off base.