Emergency Boiler Programming

The boiler has been running a lot lately, and we were roasted at night.  I am convinced it was not the thermostat's problem, so I attended the boiler.  I found a few reference on the internet about idle time, etc, so I reprogrammed the boiler as such.  I also found out about adjusting the maximum temperature allowed for the dial, so I turned down the temperature even without the turn dial, as it has snapped.  Let's hope I have optimized the setting for my needs.