July 15, 2026

It happens every summer. You open your July utility bill and wonder why it’s so much higher than the month before. While it’s normal for electricity costs to increase as temperatures climb, your air conditioner may be working harder than necessary if your bill has risen dramatically.

In American Fork, July’s intense heat puts cooling systems to the test, and an inefficient AC can quickly drive up your monthly energy costs. Understanding why your system uses more electricity and what affects its performance can help you stay comfortable without overspending.

Why Are Utility Bills Higher in July?

July is typically one of the hottest months of the year in Utah County, with daytime temperatures frequently reaching the 90s and occasionally climbing even higher. As outdoor temperatures rise, your air conditioner naturally runs longer to remove heat from your home and maintain your thermostat setting.

Humidity, direct sunlight, frequent door openings, and heat generated by cooking or household appliances can also increase your cooling load. While your air conditioner is designed to handle changing conditions, these factors can cause it to run longer throughout the day, especially during extended July heat waves.

While longer cooling cycles are expected during periods of extreme heat, there is a difference between normal seasonal energy use and an unusually high utility bill. If your air conditioner has to work harder because of poor airflow, worn components, or declining efficiency, it may consume significantly more electricity while delivering less comfort. Identifying these issues early can help reduce unnecessary energy use and prevent more expensive repairs later.

What AC Problems Can Increase Your Energy Bills?

Several factors can make your air conditioner work harder than it should. While some are related to routine maintenance, others involve mechanical problems that require professional attention. Here are some of the most common reasons your cooling costs may increase during the hottest part of summer.

Dirty Air Filters

A clogged air filter restricts airflow throughout your system. When cool air can’t circulate efficiently, your air conditioner has to run longer to reach the desired temperature, increasing both energy consumption and wear on important components.

Replacing your filter regularly helps maintain proper airflow and system performance. We recommend changing your filter at least once every 90 days, as often as once a month.

Dirty Outdoor Condenser Coils

Your outdoor unit releases heat collected from inside your home. When dust, dirt, leaves, and other debris accumulate on the condenser coils, heat transfer becomes less efficient. This forces the system to operate longer, using more electricity while reducing overall cooling performance.

Low Refrigerant or Mechanical Problems

Low refrigerant levels, worn components, or other mechanical issues can prevent your air conditioner from cooling efficiently. Instead of completing normal cooling cycles, the system may run longer while struggling to reach the thermostat setting. If your home isn’t cooling properly or your utility bills suddenly increase without explanation, professional AC repair can identify the underlying problem before it leads to more extensive damage.

Aging or Inefficient Equipment

Even when properly maintained, older air conditioning systems generally require more electricity than newer, high-efficiency models. Modern systems are designed with improved energy performance, helping homeowners reduce cooling costs without sacrificing comfort. If you’re considering replacing an aging system, our guide to understanding SEER ratings for Utah homes explains how efficiency ratings can affect long-term operating costs.

How Can You Improve AC Efficiency This Summer?

Keeping your cooling system operating efficiently starts with routine professional maintenance. We recommend scheduling a tune-up every spring before peak cooling season. Regular inspections help ensure refrigerant levels are correct, electrical components are functioning properly, airflow remains unrestricted, and small problems are addressed before they become costly repairs.

Homeowners can also improve efficiency by replacing air filters as recommended, avoiding frequent thermostat adjustments, and keeping the outdoor unit free of leaves, grass clippings, and other debris. Scheduling annual AC maintenance gives your system the best opportunity to operate efficiently throughout Utah’s hottest months while helping reduce the risk of unexpected breakdowns.

Stay Comfortable Without Overspending on Cooling

Higher utility bills are common during July, but excessive increases often indicate your air conditioner isn’t operating as efficiently as it should. At Gunthers Heating, Cooling, Plumbing and Electrical, we’ve helped homeowners throughout Utah County maximize comfort and efficiency for generations. As the oldest operating heating and air conditioning business in Utah County, a Lennox Premier Dealer, and a provider of 24/7 emergency services, we’re here when you need dependable cooling solutions.

If your July energy bills seem higher than they should be, contact Gunthers Heating, Cooling, Plumbing and Electrical to schedule a professional AC inspection and improve your system’s efficiency.

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