Your cooling system is a major investment, so it's understandable to want it to last as long as possible. If you want to save money, there are plenty of ways to extend your AC's life. Check out this guide to learn all our expert tips and tricks for keeping your AC in good condition.

Change Your Air Filter Regularly

One of the easiest yet most effective ways to maintain your air conditioner is to change its air filters on a regular schedule. A clean filter helps keep dust, pet dander, and other airborne particles from damaging its internal components. It also plays a vital role in maintaining indoor air quality. However, when a filter becomes clogged, airflow is restricted, forcing your AC to work harder to cool your home. This can lead to higher energy bills, reduced efficiency, and even premature wear on critical components. How often you should change your filters depends on the type of filter and your home's specific needs. Standard filters typically need replacement at least every three months. However, homes with pets, allergy sufferers, or high dust levels may benefit from more frequent changes—often every 30 to 60 days. Washable filters require monthly cleaning and usually last five to 10 years before you need to buy a new one. For the best results, check your manufacturer's recommendations and adjust based on your home's conditions. If you notice dust buildup around vents, reduced airflow, or strange odors, it may be time to replace or clean your filter sooner than expected. Many homeowners inspect their filters once a month to ensure they know when it is time for a fresh one. Keeping up with this simple maintenance task can extend the lifespan of your HVAC system and help maintain better indoor air quality.

Repair Any Issues Promptly

If your air conditioner develops a problem, addressing it quickly can prevent minor issues from turning into expensive repairs. AC systems rely on multiple interconnected components. A small malfunction can strain the entire system. For example, a refrigerant leak forces your cooling system to run longer, which can overheat the compressor. If left unchecked, this can lead to total compressor failure, leaving your home without cooling and requiring a costly repair or full system replacement. Neglecting minor issues can also result in severe damage to critical components like the blower motor or coils. These repairs can be expensive, sometimes making replacing the entire system more cost-effective than fixing individual parts. If you notice any signs of trouble, contact an HVAC professional as soon as possible. With our StraightForward Pricing®, you’ll know the cost before we start — no surprises, no hidden fees. Warning signs that require immediate attention include:

  • Smoky or burning smells
  • Squeaking or banging noises
  • Warm air coming from vents
  • Short cycling
  • Water dripping from your AC

Adjust Your Thermostat Settings

The average air conditioner lasts 15 to 20 years, but this lifespan depends on how often the system runs. The more hours your AC operates each day, the faster its components wear down. Reducing unnecessary runtime can help extend your system's lifespan and lower energy costs. One of the simplest ways to achieve this is by adjusting your thermostat settings. If you typically keep your home very cold, consider raising the temperature a few degrees. Even small adjustments can make a big difference in reducing strain on your AC. Energy efficiency experts recommend setting your thermostat to 78°F when you're home during the summer. While this may feel too warm for some, using ceiling fans can help circulate air and maintain comfort at a higher temperature setting. Another effective approach is running your AC on a schedule. A smart or programmable thermostat can automatically adjust the temperature when you're away, reducing energy use without sacrificing comfort. For example, you can program the thermostat to let the temperature rise while you're at work and cool your home back down before you return. This not only saves energy but also reduces wear on your system, helping it last longer.

Make Sure to Clean Your Ducts Regularly

Your air ducts may be hidden behind walls and ceilings, but they are crucial to your HVAC system. They distribute cooled air from your AC unit to the vents throughout your home. Over time, they can accumulate dust, pet dander, and other debris. Like a clogged air filter, dirty ducts can restrict airflow, forcing your AC to work harder and reducing efficiency. Excess dust in the ductwork can also contribute to poor indoor air quality, circulating allergens, and irritants throughout your home. This can be especially problematic for those with allergies, asthma, or other respiratory conditions. While some dust buildup is normal, excessive accumulation can lead to noticeable issues such as musty odors, increased dust settling on furniture, and uneven cooling. Most homeowners benefit from professional duct cleaning every five years, though homes with pets, recent renovations, or noticeable air quality issues may need more frequent service. While not all homes require frequent duct cleaning, it can be especially beneficial after remodeling projects, in households with multiple pets, or when air quality issues persist.

Improve Your Home's Insulation

Extending your air conditioner's lifespan isn't just about maintaining the unit itself; it's also about reducing the workload on your system. Your home may have air leaks, allowing cooled air to escape and forcing the AC to run longer to maintain a comfortable temperature. Common problem areas include under-insulated attics and gaps around windows and doors. By improving your home's insulation, you can help maintain indoor temperatures more efficiently, reducing strain on your AC and lowering cooling costs. Start by inspecting your home for air leaks and insufficient insulation, then take steps to seal and insulate problem areas. Some effective ways to improve insulation include:

  • Weatherstripping doors
  • Caulking around window frames
  • Adding heavy curtains or cellular blinds to windows

Schedule Regular Maintenance for Your System

Air conditioning maintenance is so important for your system's lifespan that many manufacturers require it as part of your warranty. AC maintenance is useful because it helps your system run as efficiently as possible. A typical AC maintenance visit includes:

  • Cleaning internal components
  • Checking refrigerant levels
  • Tightening loose components
  • Lubricating moving parts
  • Checking safety features
  • Replacing worn belts

You should get your AC unit maintained every year. We recommend having maintenance in early spring. This ensures your system is energy efficient before the cooling season starts. It also gives you time to have any necessary repairs performed at a convenient time rather than dealing with an emergency breakdown during the hottest days of summer. Our certified, background-checked technicians do the job right the first time — and always with your comfort in mind.

Contact Your Local Professionals

At One Hour Heating & Air Conditioning®, we have served the residents of Mount Pleasant, WI, and the surrounding areas for decades. We install, maintain, and repair heating and cooling systems. Additionally, we can help with all your other HVAC needs, including thermostat and ductwork services. Call today to book your next service visit with our expert team — we’re Always On Time…Or You Don’t Pay a Dime!®