In Durham County, HVAC technicians are experiencing a surge in service calls as central AC units struggle and fail under persistent summer heat, highlighting a preventable crisis for many homeowners. For every degree over 95 degrees Fahrenheit, AC systems begin to struggle, according to WSMV. Increased strain on central AC units reflects widespread neglect of basic maintenance, impacting homeowners in 2026.

Extreme summer heat places immense strain on AC systems, yet many homeowners overlook the simple, proactive maintenance steps that could prevent breakdowns and ensure comfort. High humidity also forces AC units to work harder, leading to increased heat gain inside homes, WHSV reports.

Homeowners who adopt a proactive maintenance approach will likely avoid the discomfort and financial burden of emergency AC repairs, while those who delay will face increased risks during peak demand. If an air conditioning system stops working during hot weather, especially if it might be frozen, it should be turned off immediately to prevent further damage, according to WSMV. Immediate shutdown prevents further damage, a critical and often counterintuitive emergency protocol.

Essential AC Maintenance Tasks for Homeowners

  • Homeowners can extend the life of their central AC units with several simple maintenance tasks. Changing air filters is a key step homeowners can take to protect their units, according to ABC11 News. Filter changes directly increase airflow within the home, enhancing system efficiency, WSMV reports.
  • Beyond filters, homeowners can vacuum air intake vents and keep outdoor AC units free of obstructions. Sealing air leaks around doors and windows also helps reduce strain on the system, according to The Des Moines Register. Actions prevent units from working harder than necessary.
  • However, DIY efforts alone may not suffice for older systems. An air conditioning system that is eight years or older and lacks recent maintenance requires professional service before the hottest days arrive, WSMV advises. Proactive maintenance, encompassing both regular DIY tasks and professional servicing for older units, is the most effective strategy for homeowners to ensure their AC systems perform reliably when needed most.