Living in the Phoenix area means relying heavily on your air conditioner. When that summer heat hits, your AC unit becomes the most valuable player in your home. But just like any hard worker, it needs some care to keep the conditioner running smoothly and achieve peak performance.
Neglecting your AC can lead to annoying breakdowns, often during the hottest days, and higher energy costs. Following some basic AC maintenance tips can make a difference in keeping your home cool and comfortable. We understand how crucial a working air conditioner is, so here are some essential air conditioner maintenance tips to help you out.
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Set Your Thermostat Wisely
Your air conditioning unit works tirelessly, especially during those scorching Arizona summers. Pushing it too hard adds extra wear and tear to the HVAC unit and significantly increases your electricity costs.
Finding the right thermostat setting helps balance comfort with efficiency for your central air conditioning. The U.S. Department of Energy suggests aiming for 78 degrees Fahrenheit during summer days when you’re home. This might sound warm, but it strikes a good balance between staying cool and managing energy costs.
Adjusting the temperature based on your schedule helps, too; it means the air conditioner operates more economically. If you’re away for work or errands, try setting it closer to 82 degrees. If no one, including pets, is home, you might even go up to 85 degrees, giving your system a much-needed break.
If 78 still feels a bit high, consider other ways to feel cooler. A dehumidifier can reduce that sticky, muggy feeling, improving indoor air quality. Blocking sunlight with curtains or blinds also prevents extra heat from creeping in through windows, lessening the load on your mechanical air system.
Finding Your Sweet Spot
Everyone’s comfort level is different, so experiment to find yours. Try setting your thermostat to 81 degrees for a couple of days and see how that feels.
Then, you can slowly lower it by a degree or two every few days until you find what works for you and your family. This gradual adjustment helps you adapt without shocking your system or your budget. Remember, small changes in how the conditioner operates add up over time.
At night, you might be comfortable with a slightly higher temperature setting. Sleeping in lighter nightwear and using a sheet instead of a heavy blanket helps. This allows you to raise the thermostat without sacrificing sleep quality, reducing strain on your air conditioner running through the night.
Try Using Programmable Thermostats
Managing your thermostat manually all day can be a hassle and inefficient. A programmable or smart thermostat offers a convenient solution. These devices let you set different temperatures for various times, automating your cooling schedule based on when you’re home or away.
They come in different types, allowing you to program settings that fit your lifestyle, from simple 5-2 day models to advanced Wi-Fi-enabled units. This helps give your AC unit strategic breaks while keeping your home comfortable when needed. It’s a simple upgrade that makes managing your indoor climate much easier.
Benefits You Can Expect
Saving money on energy costs is a big plus for most homeowners. Programmable thermostats let you reduce cooling automatically when you’re asleep or away. This cuts down energy waste, which shows up nicely on your monthly utility bill.
They also help maintain a more consistent temperature when you are home. Instead of constantly running or being manually adjusted, your central air system cools efficiently based on your pre-set schedule. This helps avoid drastic temperature swings inside and reduces wear on the system.
Many newer innovative models have features that offer even greater control and convenience. Some let you adjust settings remotely using a smartphone app from anywhere. Others can learn your habits or connect to virtual assistants like Alexa or Google Assistant for voice control.
If you have a zoned HVAC system, programmable thermostats are particularly effective. You can customize temperatures for different areas or zones in your house. This targets cooling specifically where needed, enhancing comfort and efficiency for various parts of your home.
Ultimately, automation simplifies temperature management. You set the schedule once, perhaps adjusting seasonally, and the thermostat handles the daily changes. Your home stays comfortable without constant fiddling, letting your air conditioner work smarter, not harder.
Get Your Ceiling Fans Spinning
Ceiling fans don’t lower the room’s temperature like air conditioners do. But they create a “wind chill” effect by moving air across your skin. This breeze makes you feel cooler, even if the thermostat reading hasn’t changed.
Fans are cool people, not rooms, so remember to turn them off when you leave. Leaving a fan running in an empty room wastes electricity without providing any cooling benefit. They are most effective when someone is present to feel the improved proper airflow.
Using fans allows you to raise your thermostat setting slightly without feeling warmer. According to the Department of Energy, you might be able to increase it by about 4 degrees Fahrenheit and feel just as comfortable. This partnership between your AC and ceiling fans is a smart way to save energy and reduce strain on your HVAC unit.
Ensure your fan is spinning the right way for summer cooling – it should turn counterclockwise when viewed from below. This pushes air downward, creating that pleasant cooling draft you feel. Most fans have a small switch on the motor housing to change direction; clockwise rotation is typically used in winter months to help circulate warm air.
Seal Air Leaks and Check Insulation
Think of your home like a thermos; you want to keep the cool air inside during summer. Cracks and gaps around windows, doors, electrical outlets, and pipe penetrations let the conditioned air you paid to cool escape outside. Checking and improving window seals is a crucial step.
Air leaks make your AC work harder and run longer than necessary to maintain your desired temperature. Sealing these leaks helps keep the cool air where it belongs. Proper insulation acts as a thermal barrier, preventing unwanted heat transfer from the hot Phoenix exterior into your home.
The Environmental Protection Agency (EPA) estimates homeowners can save about 15% on heating and cooling costs by properly air sealing their homes and adding insulation where needed. This could mean significant savings on your total energy expenses over the year. Such energy efficiency improvements might even qualify for tax credits in some cases.
Why Sealing and Insulating Matters
Saving energy and money is a primary motivation for improving your home’s envelope. When cooled air leaks out, your air conditioner must run more frequently to compensate. Stopping those leaks directly reduces energy consumption and lowers your utility bills.
Your comfort improves dramatically too, making this essential conditioner maintenance. A well-sealed and insulated home maintains a more consistent temperature throughout, reducing uncomfortable hot or cold spots. You feel generally more comfortable day and night, regardless of the outside temperature.
Beyond temperature control, sealing air leaks helps manage indoor humidity levels more effectively. It also reduces the amount of noise penetrating from outside. Plus, it acts as a barrier against dust, pollen, insects, and other outdoor pollutants, contributing to better indoor air quality.
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Easy Ways to Find and Seal Leaks
Perform a visual inspection around common culprits like windows and doors, looking for drafts or visible gaps. Use caulk for small, stationary gaps and weatherstripping for moving parts like door frames and window sashes. Carefully check where pipes, wires, or ducts enter your home through walls or floors; seal these openings with appropriate sealant.
Don’t overlook electrical outlets and switch plates on exterior walls; these can be sneaky, leaky spots. Installing inexpensive foam gaskets behind them is a simple and effective fix. Inspect visible insulation in attics or crawl spaces for dirty spots, which can indicate air movement and potential leaks that need sealing.
Consider unusual dark spots on ceilings or carpets near walls, especially exterior ones. These might signal air leaking through joints between walls, floors, or ceilings. Use expanding foam sealant for larger gaps around baseboards, window frames, or where building materials meet.
Check the seals on all exterior doors, including the bottom sweep and threshold seal, replacing them if worn out or damaged. Also, ensure openings around chimneys, attic hatches, or exterior vents are properly sealed, using fire-resistant materials where necessary for safety. Proper window seals are often overlooked but essential.
Remember to keep your fireplace damper closed tightly when the fireplace is not in use. An open damper is like leaving a window open, allowing conditioned air to escape straight up the chimney. This simple step helps keep your cooled air inside.
More AC Maintenance Tips: Invest in Regular Checkups
Your air conditioner is a complex piece of mechanical air equipment that runs for hours on end during our hot Phoenix summers. Without regular maintenance, its performance will gradually decline, energy use will increase, and the risk of breakdowns will rise.
Think of it like car maintenance—regular tune-ups keep your vehicle running reliably and efficiently. The same applies to your AC system; planned maintenance prevents unexpected problems, especially during peak season. These air conditioner maintenance tips are vital for longevity.
Keeping your AC units in top shape involves several key tasks. Some you can handle yourself as part of routine upkeep, but others require the expertise of a trained HVAC professional. Let’s break down the important air conditioner maintenance tasks.
Change Your Air Filters Routinely
This is perhaps the most critical DIY task for AC efficiency and maintaining good air quality. Dirty filters, clogged with dust and debris, severely restrict proper airflow through your system. This makes your air conditioner struggle to cool your home effectively and forces it to consume more energy.
Restricted airflow caused by a dirty filter can also lead to serious problems downstream. Dirt and particles may bypass the choked air filter and accumulate directly on the sensitive evaporator coil fins inside the air handler. This buildup insulates the coil, reducing its ability to absorb heat from your indoor air, further hurting efficiency and cooling power, and potentially causing the coil to freeze up.
Check your maintenance filters monthly, especially during heavy use seasons like summer and the monsoon dust season in Phoenix. Replace disposable filters or clean reusable ones according to the manufacturer’s instructions. If you have pets, allergy sufferers, or live in a particularly dusty area, you might need to replace filters more frequently to prevent them from reducing airflow issues.
Choosing the right air filter matters too. Filters have MERV (Minimum Efficiency Reporting Value) ratings; higher ratings capture smaller particles but can also increase airflow resistance. Consult your AC’s manual or an HVAC professional to select the best balance for your system and air quality needs.
Keep the AC Coils Clean
Your AC system has two main sets of coils critical for the cooling process: the evaporator coil inside your home (usually in the air handler) and the condenser coil in the outdoor condenser unit. Over time, both can collect dirt, dust, pollen, and other debris. Even with diligent filter changes, the indoor evaporator coil can still get dirty gradually from microscopic particles passing through.
A dirty evaporator coil struggles to absorb heat efficiently from your indoor air as it passes over. Similarly, the outdoor condenser coil’s job is to release the collected heat outside. If the condenser unit coil is covered in dirt, leaves, grass clippings, or cottonwood fuzz, it can’t dissipate heat effectively, forcing the system to work harder and reducing cooling capacity.
You should check the outdoor unit periodically and clear the area around it. Trim back bushes, weeds, or overhanging branches to maintain at least two feet of clear space on all sides for proper airflow. Gently hose down the exterior coil fins if they look dirty using a low-pressure stream of water from the inside out. Do not bend the delicate fins or spray water directly onto electrical components.
Cleaning the indoor evaporator coil is usually more involved and more complex to access, often requiring partial disassembly of the air handler unit. While some minor surface dust might be vacuumed off, a thorough cleaning typically involves specialized cleaners and techniques. A highly recommended part of air conditioner maintenance is getting this coil professionally cleaned annually by an HVAC technician.
Check the Coil Fins
The evaporator and condenser coils feature rows of thin aluminum strips called coil fins. These fins increase the surface area of the coils, maximizing heat transfer between the refrigerant inside the coils and the air flowing through them. Unfortunately, these delicate coil fins can easily get bent or crushed due to impacts from hail, flying debris, or accidental bumps.
Bent fins restrict airflow through the coil assembly, much like dirt buildup. This blockage reduces the system’s heat exchange efficiency, decreasing cooling performance and increasing energy consumption. Visually inspect the fins on both coils for any bent areas.
You can attempt to straighten bent fins using a specialized, inexpensive fin comb, available at most hardware stores. Gently run the comb through the fins in the direction they are oriented, carefully straightening them out. However, the fins are fragile; if there’s significant damage or you’re uncomfortable doing it, it’s best to let a professional technician handle it to avoid causing further harm. They know how to straighten bent fins properly.
Clear Condensate Drains Regularly
As your air conditioner cools the air, it also removes excess humidity. This extracted moisture (condensate) collects in a drain pan and flows away through a small pipe, typically made of PVC, called the condensate drain line. Water can back up if this condensate drain gets clogged with algae, mold, slime, or debris.
A clogged drain prevents proper humidity removal and can lead to serious problems. Water overflowing from the drain pan can cause significant water damage to your home’s ceilings, walls, floors, and surrounding structures. In many systems, a safety float switch will shut down the AC entirely if water backs up too high, preventing cooling until the clog is cleared.
You might be able to clear minor clogs near the drain outlet yourself using a stiff wire, a pipe cleaner, or by using a wet/dry shop vacuum to suck the blockage out from the end of the line. Pouring a diluted bleach solution (about one cup of bleach mixed with a gallon of water) or specialized AC drain tablets down the drain access point periodically (e.g., every few months during cooling season) can help prevent algae and slime growth. Always follow manufacturer guidelines and safety precautions when using cleaning solutions.
However, more stubborn clogs located further up the line or deep blockages often require professional attention from an HVAC professional. They have specialized tools like pressurized nitrogen or drain snakes to effectively clear condensate drains without damaging the piping. Regular checks of condensate drains should be part of your routine.
Schedule Professional Maintenance Annually
While many homeowners can manage tasks such as changing filters, cleaning the outdoor unit, and keeping condensate drains clear, comprehensive AC maintenance is best left to the experts. An annual tune-up from a qualified HVAC technician goes far beyond basic cleaning. It involves a thorough process that includes inspecting and testing critical components of your entire HVAC unit.
An HVAC professional has the right diagnostic tools, specialized equipment, and in-depth knowledge to perform the job safely and correctly. Key tasks they typically perform include inspecting electrical connections, checking motor voltage and amperage, testing capacitors and relays, lubricating moving parts like fan motors, and checking refrigerant levels and pressures (critical for systems like a heat pump or central air). They can also inspect ductwork connected to the return duct for leaks or damage that could reduce efficiency.
Perhaps the most significant benefit of hiring a professional technician is their ability to catch potential problems early. Identifying worn parts, minor refrigerant leaks from refrigerant lines, or subtle electrical issues before they escalate into a major breakdown saves you significant money, stress, and inconvenience. It helps prevent those frustrating emergency service calls during peak summer heat when HVAC contractor schedules are packed and response times can be long.
Reputable companies like Big Sky Cooling, Heating & Home Services often offer preventative maintenance plans or agreements. These usually include one or two scheduled yearly tune-ups, typically before the peak cooling and heating seasons (like preparing before the winter months). This ensures your system, whether central air conditioning, a heat pump, or even a ductless mini-split, is ready for the demanding Phoenix summer, operating at peak performance and maximum efficiency when you rely on it most. Keeping the unit clean and well-maintained extends its lifespan.
Here’s a table summarizing everyday tasks in a professional tune-up:
| Component/System | Maintenance Task |
|---|---|
| Thermostat | Check calibration and settings. |
| Electrical Connections | Inspect and tighten connections; check voltage/amps. |
| Moving Parts | Lubricate motors and bearings. |
| Condensate Drain | Inspect and clear the drain line. |
| System Controls | Verify proper starting sequence and shutdown control. |
| Evaporator & Condenser Coils | Inspect cleanliness; professional cleaning if needed. Check coil fins. |
| Refrigerant Levels | Check refrigerant charge and inspect for leaks in refrigerant lines. |
| Blower Components | Inspect blower motor and wheel; check airflow. |
| Air Filter | Check condition and replace if necessary (customer usually provides). |
| Ductwork | Basic visual inspection for obvious leaks or issues near the unit. |
Investing in annual service from an experienced HVAC contractor is one of the best conditioner maintenance tips for ensuring reliable cooling and protecting your investment in home comfort. It’s peace of mind knowing your system is ready.
Schedule an Estimate
Request your estimate online and experience the Big Sky difference—quality service, upfront pricing, and comfort you can count on!
Conclusion
Keeping your air conditioner in good shape is vital for comfort and budget management, especially here in the Valley’s intense heat. Following these essential AC maintenance tips helps your system run efficiently, prevents unexpected failures, and potentially extends its lifespan. From simple tasks like setting the right temperature and changing the air filter to more involved steps like cleaning coils and scheduling regular professional checkups, each action contributes to reliable cooling performance.
Remember that consistent care, combining diligent DIY efforts with expert annual service, is the most effective strategy. Applying these air conditioner maintenance tips helps you stay cool and comfortable through the hottest months while managing energy costs. Proper upkeep means your conditioner operates effectively when needed most.
Don’t hesitate to hire professional help when needed for tasks beyond basic upkeep or if you suspect problems with your ac units. Experienced technicians like those at Big Sky Cooling Heating & Home Services have the expertise to handle complex conditioner maintenance and repairs for all types of air conditioners, ensuring your home stays cool all summer long.
