Have HVAC Questions? Ask an HVAC Expert for Answers
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of you situation.
Please describe the problem
I'm sorry but I'm not available for a phone call. If the system worked properly in the past it's highly unlikely the setting were/are the problem. How many thermostats do you have?
Do you have zone valves?
If you have zone valves they have to open then signal the boiler that they are open. If that doesn't happen you won't get heat.
If you can't answer my questions you'll probably have to call a pro to help you with this.
Sorry we couldn't resolve this. Thanks for trying just answer