T G Heating & Air Conditioning - Saint George's Reliable HVAC Services

That's a classic sign of an evaporator coil freeze-up, a common issue in our area often caused by restricted airflow (like a dirty filter), low refrigerant, or a failing blower motor. It's important to turn the system off to let it thaw completely. Our technicians can then diagnose the root cause—whether it's a simple filter change or a refrigerant leak repair—to prevent it from happening again and protect your compressor.

Thermostat malfunctions can stem from several local factors, including dust accumulation inside the unit, wiring issues from power surges common in our desert climate, or simply an old, inaccurate model. We'll check the calibration, wiring, and location (avoiding direct sunlight or drafts) to ensure it's communicating correctly with your HVAC system. Often, an upgrade to a modern, programmable thermostat can improve both comfort and energy efficiency.

The most important service is regular preventative maintenance, ideally before the peak heating and cooling seasons. Our thorough maintenance check includes cleaning coils, checking refrigerant levels, inspecting electrical components, and ensuring proper airflow—all critical steps to prevent the freeze-ups and thermostat issues we frequently see. This proactive approach extends your system's life, improves efficiency, and helps avoid costly emergency repairs during our hottest and coldest months.