Hi everybody

I have got a boiler which carries a cam stat fan limit . How do you try to check it out to make sure it is still working fine and will shut down the boiler when the temp has gone off the set point .
Any comments welcome .

There should be a place to turn the temp up and down. Turn your boiler on at the tsat then turn down the limit control if it shut off your working fine simply return it to the temp it was.