Heating issues often start with small signs such as uneven rooms, short cycling or weak airflow. A clogged filter can restrict airflow and cause overheating or shutdowns. Gas furnace troubleshooting may include verifying ignition, checking sensors and confirming safe venting. Legacy Home Services provides heater repair new braunfels and nearby support, along with furnace and heat pump service. Keeping filters clean, vents open and tune-ups scheduled can help reduce emergency calls.