When extreme heatwaves push outdoor temperatures up to 100 degrees Fahrenheit, your air conditioner is generally designed to maintain an indoor temperature about 15 to 20 degrees cooler than the outside air, meaning an indoor target of 80 to 85 degrees is realistic for standard residential systems. Attempting to force an AC to reach 70 degrees when it is 100 outside will cause the system to run continuously without ever shutting off, risking frozen evaporator coils and compressor burnout. Verification: Measure the temperature difference between outdoor air and indoor supply vents to ensure proper cooling performance.
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