The HVAC (heating, ventilation, and air conditioning) system in your home may run flawlessly for years, and then out of the blue, the system may break down. Repairing the system may not be complicated, but calling an HVAC service to come and evaluate the issues is a good idea.
Common HVAC Issues
Some things are pretty common with HVAC systems and can cause the system to stop working. One of the most common is a lack of proper maintenance, leading to dirty filters in the HVAC system. An HVAC service tech many need to come and clean the system if the filters have not been adequately maintained or the system cleaned in a while.
Dust and dirt in the system can be a big issue because it can slow or stop the airflow through the system, making the entire system work harder and potentially shut down. When the air is not able to get through the evaporator, the system often starts to ice up, and the air coming into the house will be far warmer than it should be.
The HVAC services tech will have to take the system apart, thaw out the parts, and clean the system to get everything working, and most of the time, regular filter changes would help avoid these issues.
The thermostat on the wall in your home only has a few wires with low voltage current running through it, but if the thermostat stops working, the entire HVAC can stop as well. The controller on the HVAC system needs a signal from the thermostat to know when to turn the system on and off, and if that signal stops, the controller will shut the system down to avoid damage.
Many homes now have smart thermostats controlled from cell phones or other network-connected devices, but they still need to have the right amount of power and be able to communicate with the HVAC system. Some smart thermostats monitor the HVAC unit for issues and can send alerts when there is an issue, as well as allowing you to shut the system down remotely if you are not there when the problem occurs.
The tech in these modern thermostats sometimes makes it easier to figure out where the issue is, and sometimes, it further complicates things, but the HVAC services tech will be able to determine what the problem is once they arrive at the home. Often, the tech will start at the thermostat if the system is down and then work from there if that is not the problem.
For more info, contact an HVAC services provider.