Do you think you will need a furnace repair? The problem might have to do with your air conditioner. Coming home to a malfunctioning HVAC unit is indeed frustrating, especially if you want to rest and relax. While most air conditioning units can last for decades, you may extend or shorten the lifespan of your unit, depending on the following factors:

Air Filter Replacement

When talking to an HVAC technician, you will be advised to change your air filter regularly. There are good reasons why changing your filter is necessary and one of which is to continue to have a steady supply of clean and fresh air. Filters need to be replaced once every 90 days. More often if you have asthma or pets at home.

For micro-particle filters, you have to change them every month. Depending on the season and where you live, changing your filter might even be done as often as twice a month. Filters also need regular replacement if there is dust or heavy pollen in your area.

Constant Usage

Expect your units to have a shorter lifespan if you operate them around the clock. Your unit is prone to wear and tear due to constant operation. Failing to clean, change the filter, or maintain your HVAC unit will cause inefficiency. A unit that performs poorly needs to operate frequently so it blows cold air.

When you are using your unit every day, you need to protect it by applying some preventative measures. Keeping your unit cooled off and cleaned out will extend its life for many years to come.


Proper upkeep will ensure that your unit reaches its maximum life expectancy. While there is a maintenance routine that you can perform yourself, it is better to leave the job to an HVAC specialist. Start by getting rid of debris and grass from around your air conditioner. You will also need to check your refrigerant lines to make sure that its insulation is still in good condition.

Air Conditioner

Clean the coils of your unit as well by taking a hose to spray the dirt off. Keep the condensation drip clean by using bleach and water. A blocked vent can cause your HVAC unit to become inefficient. Be sure to check this component, making sure that dirt and debris are not blocking it. If it has been blocked, you will need to change your filter to address the problem.


Another factor that plays an important role in determining the lifespan of your unit is your location. Areas that are dry with the arid climate that attracts dust around your filters and coils cause the unit to deteriorate more quickly. You will need to clean your unit more frequently so they continue to function efficiently. Humidity also affects the life of your HVAC unit. Certain seasons have too little or too much humidity. These changes are your basis in changing your thermostat settings.

During summer, you need to keep humidity below 60%. Your HVAC unit works hard to seal moisture from the air. You can make your unit more efficient by adding a dehumidifier so the temperature stays within a comfortable setting. This technique can also get rid of excess moisture, which can cause health problems when it accumulates. The winter months, on the other hand, have a drying effect on the air. For this season, you need to allow 35% humidity as it is considered as the comfortable heated moisture level. You will also need to ask an HVAC technician regarding installing a humidifier.


The installation of your unit can also create an impact on its overall performance. If you skipped hiring a qualified HVAC technician to install your unit, you may face a problem in the future when your unit starts to malfunction. The ductwork, for instance, needs to be properly placed. Even the venting requires a suitable location. Everything that keeps your unit working must also be sealed properly.

Even if you have a new unit, you will need to consider annual maintenance so you can enjoy using your air conditioner for years. You have to watch out for the changing of the seasons. While maintenance costs you a little money, the long-term benefits you obtain from it makes it a wise investment. Your unit will also provide you with many years of service.