Heat Wave Advisory: Why Your AC System May Not Maintain the Set Temperature
🌡️ Heat Wave Advisory: Why Your AC System May Not Maintain the Set Temperature
During periods of extreme heat, many homeowners notice that their air conditioning system runs continuously and still struggles to reach the thermostat setting. This does not always mean the system has failed. Several factors can significantly affect performance during heat waves.
✅ Insufficient Attic Insulation Poor or missing attic insulation allows excessive heat to enter the home, increasing the cooling load and making it difficult for the AC system to keep up. Improving insulation levels can dramatically reduce heat gain and improve comfort.
✅ Lack of Regular Maintenance Dirty evaporator coils, clogged condenser coils, restricted filters, low refrigerant levels, and neglected components reduce system efficiency and cooling capacity. Regular maintenance helps your system operate at its designed performance level, especially during peak summer conditions.
✅ System Sizing and Extreme Temperatures Air conditioning systems are typically designed using local average annual temperatures and industry load calculations. These calculations often do not account for prolonged periods of record-breaking heat, high humidity, poor insulation, air leaks, or improperly designed duct systems. As a result, even correctly sized equipment may experience difficulty maintaining lower indoor temperatures during extreme weather events.