HVAC Repair Collinsville IL | Call Tettaton Heating & Cooling

It's a serious issue that needs prompt attention. Frozen components often mean restricted airflow, which can damage your compressor—a costly repair. For Collinsville's humid summers, this also means your system isn't dehumidifying properly. Turn the system off at the thermostat and call us. Our technicians will diagnose the root cause, typically a dirty filter, low refrigerant, or a blower problem, and get your system running safely and efficiently.

We recommend an annual furnace tune-up and safety inspection, ideally in the fall before you start using your heat regularly. Illinois winters put heavy demand on furnaces, and wear can create cracks in the heat exchanger—a primary source of dangerous carbon monoxide leaks. Our Collinsville-based technicians perform comprehensive checks, testing for CO and ensuring all components are operating safely to protect your home and family.

Often, it's a lack of routine maintenance. During sudden cold spells, furnaces that haven't been serviced can struggle with ignition, airflow, or a dirty flame sensor, causing them to shut down. A preventive maintenance visit from Tettaton can catch these issues beforehand. We clean critical components, check electrical connections, and ensure your system is ready to handle the demand, helping you avoid an unexpected breakdown on the coldest night.