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What the August Heat & Humidity Can Do to Your AC

In Beaumont, August brings the kind of heat and humidity that pushes air conditioners to their limits. Prolonged triple-digit temperatures and heavy moisture in the air put stress on every part of your cooling system. At Air Services Unlimited, we see a spike in service calls this time of year—many of them avoidable with the right preparation and care. If you want to stay cool and avoid mid-season breakdowns, understanding how August weather affects your AC is key.

Homeowner and HVAC technician inspect AC condenser for condensation during Texas heat

How Heat and Humidity Strain Your System

When temperatures soar, your air conditioner has to work longer and harder to maintain a comfortable indoor temperature. The hotter it is outside, the longer your system runs. Add in high humidity, and your AC isn’t just cooling the air—it’s also trying to remove moisture at the same time.

  • Extended run times increase wear on motors, compressors, and capacitors
  • Humidity slows the cooling process, making your home feel warmer than the thermostat reads
  • Moisture buildup can cause evaporator coils to freeze or become clogged with condensation
  • Higher indoor humidity creates an ideal environment for mold growth inside ductwork

The result is a system under constant pressure, burning more energy, and facing greater risk of breakdown.

Be Watchful of Signs Your AC Is Struggling

August is not the time to ignore small issues. Unusual performance from your AC during this peak season often means something is already starting to go wrong.

  • Rooms feel stuffy or clammy even when the AC is running
  • Vents blow warm air or the system cycles on and off frequently
  • You hear rattling, buzzing, or clicking sounds from the unit
  • Your energy bill spikes unexpectedly with no change in thermostat settings

If you’re noticing any of these symptoms, don’t wait for the system to fail. Prompt AC repair can prevent damage and restore performance before the next heatwave rolls in.

Thermostat Habits Matter During Peak Season

Constantly lowering the thermostat won’t help your system catch up during extreme heat. In fact, it can make things worse.

  • Set your thermostat no lower than 78 degrees for cooling efficiency and system protection
  • Use ceiling fans to enhance airflow and improve comfort at higher settings
  • Avoid sudden temperature drops that force the system into prolonged high-capacity operation
  • These adjustments reduce the workload on your system and help maintain steady performance.

Don’t Skip Air Filter Changes

A dirty air filter restricts airflow and causes your system to overwork, especially when humidity is high. During August, filters can clog faster due to heavier use and airborne moisture.

  • Check your filter every two to four weeks during peak season
  • Replace it sooner if it looks gray or dusty, even if it hasn’t reached the recommended interval
  • Choose high-efficiency filters if you’re also concerned about indoor air quality

Clean filters keep air moving freely and help your system cool and dehumidify more effectively.

Maintenance Makes a Big Difference

If you had seasonal AC maintenance earlier in the summer, your system is in a much better position to handle August’s extremes. Professional tune-ups:

  • Improve airflow and refrigerant balance for more efficient cooling
  • Detect and correct minor wear before it becomes costly damage
  • Ensure the system’s dehumidification features are working as designed

Routine maintenance protects your investment and reduces the chance of a mid-season emergency AC repair.

Contact Air Services Unlimited—Exceeding Customer Expectations! 

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