Avanigo Air Maintenance | Qualified HVAC Repair in San Antonio, TX

In our San Antonio climate, a frozen evaporator coil is often caused by low refrigerant levels or restricted airflow. Low refrigerant reduces pressure, causing the coil to get too cold. Restricted airflow, from a dirty filter or blocked vents, prevents warm air from passing over the coil to melt the frost. Our technicians perform precise diagnostics to identify the root cause—whether it's a leak, a dirty coil, or a failing blower motor—and provide a lasting repair to restore your system's efficiency.

Common signs include weak airflow from your vents, unusual noises like grinding or squealing from the indoor unit, frequent system cycling, or your AC running constantly without cooling properly. In San Antonio, where systems work hard, these issues often stem from a failing blower motor, a clogged drain line causing shutdowns, or worn belts and bearings. Avanigo Air Maintenance can inspect your air handler, perform necessary repairs or motor replacements, and ensure it's moving air effectively to protect your entire HVAC system.

Our local climate puts extra strain on HVAC systems. Our comprehensive maintenance service includes checking refrigerant levels, cleaning the evaporator coil and drain line, testing the air handler's blower motor and electrical components, and replacing air filters. This proactive care directly addresses the main causes of freeze-ups and air handler failures. By catching small issues early—like a minor refrigerant leak or a dirty coil—we help prevent costly breakdowns and keep your San Antonio home comfortable and energy-efficient throughout the hottest months.