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Why Your AC Can't Keep Up with Texas Panhandle Heat (and Fixes That Work)

Posted on June 19, 2026

Is It Normal for My AC to Not Be Able to Keep Up with the Heat? 

During normal summer temperatures, your air conditioner should be able to keep your home cool. But during extreme Texas Panhandle heat, especially when temperatures climb above 100°F, even a properly functioning air conditioner may struggle to maintain very low thermostat settings. However, if your home never seems comfortable, your system runs constantly, or your air conditioner is not blowing cold air, there may be an underlying problem that needs attention. 

In Amarillo, summer temperatures can rise quickly, putting significant strain on HVAC systems. If your home never seems to reach the temperature you set, it's worth investigating the cause before a small issue turns into a major repair. 

At Larry's Heating and Air Conditioning, we provide air conditioning repair in Amarillo and surrounding communities. Here are some of the most common reasons an AC struggles during Texas Panhandle summers and what you can do about them. 

Why Your AC May Not Be Able to Keep Up 

Extreme Texas Panhandle Heat 

Air conditioners are designed to cool your home, but every system has limits. During periods of extreme heat, your system may run longer than usual and still struggle to maintain very low indoor temperatures. 

Many HVAC systems are designed to maintain a temperature roughly 15–20 degrees cooler than the outdoor temperature. If it's 105°F outside, keeping your home around 75–80°F may be more realistic than trying to reach 68°F. 

However, if your system cannot maintain a comfortable temperature even during typical summer conditions, there may be another issue involved. 

Dirty Air Filters 

One of the most common causes of cooling problems is also one of the easiest to fix. 

A clogged filter can: 

If your air conditioner is not cooling when it's hot outside, checking the filter is a good first step. 

Your System Is the Wrong Size 

Bigger isn't always better, and smaller certainly isn't. 

An undersized system may run constantly without adequately cooling your home. An oversized system may short cycle, turning on and off too frequently without properly removing humidity. 

If your system has struggled since the day it was installed, sizing could be part of the problem. 

Thermostat Issues 

Sometimes the problem isn't the air conditioner itself. 

Incorrect thermostat settings, faulty sensors, or calibration issues can cause cooling problems and make it seem like your AC is failing when the real issue is much simpler. Before calling for service, verify the thermostat is set to "Cool" and that the temperature setting is below the current room temperature.  

Aging or Damaged Components 

Your AC system is made up of many working parts, including: 

As systems age, components wear out. If your AC is not turning on or stopped working, professional diagnosis is usually the safest and most effective solution. 

Storm Damage and Power Surges 

Summer storms are common throughout the Texas Panhandle. 

If your AC unit is not working after a storm, electrical components may have been damaged by lightning, power fluctuations, or debris. If this happens, turn the system off and have it inspected before attempting to restart it repeatedly. 

How to Help Your AC Handle the Heat 

While some repairs require professional service, homeowners can take several steps to help their systems perform more efficiently. 

Change Your Air Filter Regularly 

Replace filters every 30–90 days, or more often if you have pets, allergies, or significant dust exposure. 

Keep Blinds and Curtains Closed 

Blocking direct sunlight can reduce indoor heat gain and ease the workload on your air conditioner. 

Seal Air Leaks 

Gaps around doors and windows allow cooled air to escape and hot air to enter. Weatherstripping and caulking can make a noticeable difference. 

Check for Duct Leaks 

Leaky ductwork can waste cooled air before it ever reaches your living spaces. 

Use Ceiling Fans Correctly 

During summer, ceiling fans should rotate counterclockwise. This pushes air downward and creates a cooling wind-chill effect that can make rooms feel more comfortable. 

Avoid Heat-Producing Activities During Peak Hours 

Running ovens, dryers, and dishwashers during the hottest part of the day adds extra heat inside your home. Consider using large appliances in the morning or evening when temperatures are lower. 

Schedule Professional Maintenance 

Routine air conditioner maintenance helps identify small issues before they become major repairs. It can also improve efficiency and extend the lifespan of your system. It also allows technicians to catch refrigerant leaks, dirty coils, and worn components before they affect cooling performance.  

Don't Wait for a Complete Breakdown 

An air conditioner that struggles to keep up today may stop working entirely tomorrow. 

If your system is running constantly, blowing warm air, making unusual noises, or showing other warning signs, professional AC repair can help prevent a costly breakdown during the hottest days of summer. 

Larry's Heating and Air Conditioning provides HVAC repair in Amarillo, emergency service, maintenance, and cooling solutions designed for Texas Panhandle weather. We're available 24 hours a day to help when cooling problems can't wait. 

We proudly serve: 

Contact Larry's Heating and Air Conditioning today to schedule service and keep your home comfortable all summer long.