Thermography is an effective tool for detecting various types of air compressor component anomalies. For example, motor overheating can be caused by excessive load, poor ventilation, low voltage, high current, or faulty bearings. This can lead to reduced efficiency, increased power consumption, and shortened motor life. Thermography can help identify the hot spots on the motor and measure the temperature rise. Compressor head underheating can be caused by low compression ratio, insufficient air intake, or excessive air discharge. This can result in reduced output, increased power consumption, and decreased reliability. Thermography can identify the cold spots on the compressor head and measure the temperature drop. Valve leakage can be caused by worn or damaged valve seats, springs, or seals. This can lead to reduced output, increased power consumption, and decreased reliability. Thermography can detect the hot spots on the valve and measure the temperature difference between the inlet and the outlet. Intercooler or aftercooler blockage can be caused by dirt, scale, or corrosion in the tubes or the fins. This can cause reduced cooling, increased power consumption, and increased moisture in the air. Again thermography is useful for identifying the cold spots on the intercooler or aftercooler and measuring the temperature difference between the inlet and outlet.