How Low Can You Turn Your AC Down?

Premier Systems
June 20, 2023

Do you struggle cooling your home in the summer? Contact Premier Systems at 406-823-3602 for superior solutions.


How low can you turn your AC down before it causes damage? Many homeowners mistakenly calibrate their thermostat settings too low, reducing the service life of their appliances and causing spikes in their utility bills. 


You can avoid these problems by considering the information below. Bozeman's reliable AC maintenance contractors discuss the preferred thermostat setting, and common problems you may experience when lowering your thermostat.


Once you finish reading, contact these world-class HVAC technicians for air conditioning installations and repairs.


How Low Is Too Low?


Every air conditioning system is different. However, you can follow a few strategies to improve the reliability and energy efficiency of your unit during the summer. For example, HVAC specialists recommend setting your thermostat no lower than 20 degrees the outside temperature. 


Suppose the outdoor temperature in your area is a blistering 90 degrees Fahrenheit. It’s probably best to keep your thermostat between 70 and 80 degrees Fahrenheit to prevent stress on your unit. 


Problems You May Encounter When Setting the Thermostat Low


Ignoring the advice above could cause a wide range of HVAC issues. Here are a few things to look out for when calibrating your AC unit:


  • Dehumidification Problems: Your air conditioning unit dehumidifies the air as it cools your home. Setting the temperature too low can cause underperformance issues and reduce its ability to eliminate moisture in your air.
  • Component Malfunctions: Overworking your blower fan may cause it to malfunction over time. Depending on the size of your air conditioning unit, this problem could require expensive repairs. 
  • Refrigerant Leaks: Your refrigerant coils may produce too much condensate at low temperatures, resulting in frozen components. Freezing AC units will produce less cool air and may shut down unexpectedly.
  • High Energy Bills: The harder your HVAC system works, the more money you should expect to pay on your monthly utilities.


How low can you turn your AC down when you are away from home? Does raising the temperature prevent these issues? In most cases, keeping your thermostat closer to the outdoor temperature while you are away can prevent or delay these issues significantly.


Ask a professional, like those at Premier Systems, which solution is right for your AC model.


How to Improve Indoor Temperature Control


Turning your thermostat down may not always be the most practical solution to improve your indoor comfort. You can save money on your utilities and prevent HVAC over performance issues with the following tips:


  • Use portable fans and cooling appliances while your AC runs
  • Clear mold, ice, and debris away from your outdoor unit
  • Install a smart thermostat to monitor changing weather conditions and adjust accordingly
  • Reduce obstructions in your air ducts for better temperature regulation
  • Replace air filters every three months for optimal cool air flow
  • Monitor your thermostat regularly to avoid overspending on cool air
  • Invest in a new air conditioning system with better energy efficiency ratings (SEER)


Is a Replacement HVAC System Necessary?


Sometimes, irreparable damage can prevent your AC unit from producing enough cool air to achieve your desired indoor temperature. In this case, a new installation may be necessary to save you from the summer heat.


Most new air conditioning systems will list recommended thermostat settings on the product box or user manual. Don’t ignore these metrics. Lowering the temperature settings below the model’s power capabilities could cause unnecessary damage. 


A licensed and insured technician can help if you aren’t sure what size model or SEER rating you need for your home. They will inspect your vent system and count rooms in your home to ensure that you get the best circulation throughout your property.


Simplify Your Indoor Temperature Control With Premier Systems


Learning how to increase airflow in AC units and prevent freezing doesn’t need to be a hassle. At Premier Systems, we help hundreds of homeowners like you get the cool air they need at affordable rates. Our installation and repair technicians have years of experience and will treat you with respect during every visit.


Are you experiencing problems with your HVAC system when you need it the most? We can get your air conditioner working again in no time. Our crew will pay close attention to detail during your inspection, and recommend repair solutions that suit your budget and timeline.


How low can you turn your AC down during the summer? Explore more information when you call 406-823-3602. Schedule a consultation with Premier Systems in Bozeman, MT, to cool your home today.


 


May 20, 2026
5 Signs Your AC Won’t Survive the Summer
May 11, 2026
Why Spring Is the Best Time to Replace Your A/C
April 28, 2026
Wildfire season has become an increasingly common part of life in Southwest Montana, especially for homeowners in Bozeman, Belgrade, and Four Corners. While the smoky haze outside is easy to see, what’s happening inside your home is often less obvious. Many people assume that simply closing windows and doors will keep them safe—but wildfire smoke can still enter your home and impact your indoor air quality (IAQ) in ways that affect both comfort and health. Why Wildfire Smoke Indoors Is a Serious IAQ Concern Wildfire smoke is made up of extremely fine particles called PM2.5, which are small enough to pass through tiny openings and even some standard HVAC filters. Once inside your home, these particles can circulate through your ductwork and linger in the air. For homeowners in our area, poor indoor air quality during wildfire season can lead to: Coughing, sneezing, and throat irritation Headaches and fatigue Aggravated asthma or allergies Increased strain on your HVAC system Without proper filtration and system maintenance, your home’s air may not be as clean as you think. How Smoke Affects Your HVAC System Your HVAC system plays a major role in managing your indoor air quality —especially during wildfire events. When smoke enters your home, your system can either help remove harmful particles or unintentionally spread them throughout your space. If your system isn’t equipped with the right components, you may experience: Reduced filtration of fine smoke particles Dirty ductwork circulating contaminants Increased wear and tear on system components Decreased efficiency and airflow This is why homeowners across Bozeman and Belgrade are upgrading their systems to better handle wildfire smoke conditions. HVAC Solutions to Improve Indoor Air Quality During Wildfire Season The most effective way to protect your home’s air is through professional HVAC solutions designed specifically for indoor air quality in Four Corners, Belgrade, and Bozeman. Upgrade to HEPA or High-Efficiency Filters Standard filters aren’t designed to capture the smallest smoke particles. Upgrading to HEPA filters or high-MERV rated filters allows your system to trap significantly more airborne contaminants, improving your IAQ immediately. Install Whole-Home Air Purification Systems Advanced air purification systems integrate directly into your HVAC system to continuously clean the air as it circulates. These systems are especially effective during wildfire season when outdoor air quality is poor for extended periods. Add an Air Scrubber Air scrubbers go beyond traditional filtration by actively removing pollutants, odors, and particles from the air and surfaces in your home. This added layer of protection can make a noticeable difference in homes affected by wildfire smoke. Schedule Professional Duct Cleaning If smoke has entered your home, particles can settle inside your ductwork. Duct cleaning removes built-up contaminants and prevents them from being recirculated, helping restore cleaner air throughout your home. Keep Up with HVAC Tune-Ups Regular HVAC tune-ups ensure your system is running efficiently and filtering air properly. During wildfire season, a well-maintained system is critical for maintaining healthy indoor air quality. Long-Term Protection for Homes in Bozeman, Belgrade & Four Corners Wildfire smoke isn’t just a temporary inconvenience—it’s an ongoing challenge for homeowners in Southwest Montana. Investing in indoor air quality solutions through your HVAC system provides long-term protection for your home and your family. By combining: High-efficiency filtration Whole-home air purification Air scrubbers Clean ductwork Routine system maintenance …you can significantly reduce the impact of wildfire smoke indoors. Breathe Easier with the Right HVAC Support Your home should be a place where you can escape poor outdoor air—not bring it inside. With the right HVAC upgrades and maintenance, you can take control of your indoor air quality in Bozeman, Belgrade, and Four Corners, even during the peak of wildfire season. If you’re noticing smoke lingering in your home or want to prepare ahead of time, working with a trusted HVAC professional can help you choose the best solutions for cleaner, healthier air. Cleaner indoor air starts with the right system—and the right team behind it.
thermostat
By U. Baid February 27, 2026
Cut energy use and boost comfort this winter with a WiFi thermostat. Get remote control, smart scheduling, and faster heating where it matters most.
mini split ac
By U. Baid February 27, 2026
Learn how mini split installation in Bozeman gives you zoned comfort, quiet operation, and better energy use, no matter what Montana’s weather brings.
furnace
By U. Baid February 19, 2026
Stay warm through winter with helpful tips on furnace maintenance in Bozeman to prevent breakdowns and keep your heating system running smoothly.
furnace
By U. Baid February 19, 2026
Keep your home cozy with simple habits and proper furnace maintenance in Bozeman. Learn ways to stay warm without stressing your heating system.
ac unit
By U. Baid February 18, 2026
Keep your cooling system reliable with air conditioner maintenance tips for Bozeman homeowners, including filter checks, coil cleaning, and tune-ups.
ac coils
By U. Baid February 18, 2026
Learn the best method for cleaning AC coils, plus safety tips, tools, and maintenance steps to improve performance.
ac maintenance
By U. Baid February 18, 2026
Learn how often to schedule air conditioner maintenance, what to expect from seasonal tune-ups, and tips to keep your home cooling reliable in MT.