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Signs Your Air Conditioning System Needs Repaired in 2023

Signs Your Air Conditioning System Needs to be Repaired in 2023

Whether you’re lounging at home on a sweltering summer day or working remotely in the comfort of your air-conditioned office, the last thing you want is a malfunctioning air conditioning system. But like any other appliance, air conditioners aren’t immune to wear and tear. Recognizing the early warning signs of trouble can save you from the discomfort of a broken AC and the cost of unnecessary repairs. This comprehensive guide will arm you with the knowledge you need to identify “the signs your air conditioning system needs to be repaired” and keep your AC running smoothly and efficiently.

Short Summary

  • Recognize warning signs of AC trouble, such as insufficient cooling, noises, and increased energy bills.
  • Monitor key components for optimal performance: air filters, condenser/evaporator coils, and thermostat functionality.
  • Consider repair vs replacement based on system age, frequency of repairs & efficiency ratings to determine cost-effectiveness.

Warning Signs of AC Trouble

Your air conditioning system, like a trusted friend, gives off signals when it needs attention. Overheating in the summer months? Your AC unit might be trying to tell you something. Getting the chills from strange noises in the house? It could be your central air conditioner crying out for help. Seeing your energy bill skyrocket? Your AC might be the culprit. Recognizing these warning signs can save you from big problems down the line.

Insufficient cooling, unusual noises, and increased energy bills are the three main warning signs of AC trouble. Insufficient cooling could indicate a problem with the AC refrigerant, hinting at the need for air conditioner repair. Strange noises could suggest that your central air conditioner needs servicing or replacement. Finally, higher energy bills could be caused by issues with the condenser coils or other components of the air conditioning system.

Insufficient Cooling

Imagine returning home after a hot day, only to find that your AC isn’t cooling your home effectively. This could be due to poor airflow, a common sign that your air conditioner’s outdoor unit isn’t functioning optimally, or that an obstruction is blocking air from traveling through your home’s ductwork. Diminished airflow may also affect the indoor temperature and could be caused by issues with the motor or fan.

A clogged air filter, a broken motor, or damaged coil fins could be at the root of the problem. Alternatively, decreased airflow could be due to a failing compressor or a problem with the ducts. To improve the flow of cool air into a room, consider using an in-line duct booster fan, a device designed to activate automatically when the cooling system is in operation. Alternatively, consider installing a zoning system or an energy recovery ventilator. These systems can guarantee that the necessary airflow and cooling power is delivered to the areas that require it, and can also provide additional support to an air conditioner by exchanging stale air with fresh air every time the system cycles.

Unusual Noises

Just like your car, your air conditioner should run fairly quietly. If your AC unit begins to make unusual noises, it might be signaling that something is wrong. Loose parts, motor problems, or other internal issues may be indicated by unusual noises from the unit. This is a clear sign that it’s time to call in a professional to diagnose and repair the problem.

Rattling or buzzing noises can point to a loose part. Whistling or grinding sounds, on the other hand, could signify something more serious. A loud noise emanating from the AC unit could suggest a potential issue with a belt moving out of place. It’s important not to ignore these warning signs, as they could hint at big problems that could become costly if left unaddressed.

Increased Energy Bills

While an increase in energy costs during the cooling season is to be expected, a sudden spike could indicate an issue with your AC system. An inefficient AC system, improper thermostat settings, or issues with the ductwork can all be potential causes. When you notice a significant increase in your energy bills, it’s time to have your unit serviced.

Potential causes could include a malfunctioning thermostat, leaks in the HVAC system’s ductwork, or the elevated age of the air conditioning unit. Remember, a properly functioning AC unit should not only cool your home but also do so efficiently, without causing a drastic increase in your energy costs.

Key Components to Monitor

Having identified the warning signs of AC trouble, it’s equally important to understand the key components of your air conditioning system that you should keep an eye on. These include the air filters, condenser and evaporator coils, and thermostat functionality. Regular maintenance of these components can make the difference between a well-functioning AC and a disaster waiting to happen.

Changing or cleaning air filters is one of the most significant maintenance tasks for air conditioners. And maintaining a clearance of approximately 24 inches in all directions around the air compressor and condenser of a central AC system can ensure optimal performance.

The thermostat, which serves as a communication tool between the AC and the environment, indicating the level of cold air it must generate, also requires regular attention. A programmable thermostat or smart thermostat like the Ecobee or Google Nest can provide further benefits, allowing for temperature customization based on occupancy, and providing the ability to set higher temperatures when away from the premises and cooler temperatures when present.

Air Filters

The importance of regularly cleaning or replacing air filters cannot be overstated. Dirty filters can impair the efficiency of your AC unit and lead to other problems. It’s recommended to replace the filter every month during the cooling season. In central air conditioners, the filters are usually situated somewhere along the length of the return duct.

However, if your air conditioner is in constant use, is exposed to dusty conditions, or if there are furry pets in the residence, the air filters may require more frequent attention. Regular maintenance of air filters will ensure that your AC unit operates at maximum efficiency, providing you with cool, clean air when you need it most.

Condenser and Evaporator Coils

Next up are the condenser and evaporator coils. These components of an air conditioning system facilitate air cooling. To ensure optimal system performance, they should be regularly cleaned and inspected to prevent dirt accumulation, which can impede airflow. The condenser coil, in particular, may become dirty due to a dusty outdoor environment or the presence of foliage nearby.

Cleaning the evaporator coil can avert the accumulation of dirt which can impede system operation. Regular maintenance of these coils can contribute to your system’s efficiency and help decrease energy costs.

Thermostat Functionality

Last but not least, thermostat functionality is a key component to monitor in your AC system. A smart thermostat can maintain comfortable temperatures while maximizing energy efficiency. A programmable thermostat or smart thermostats like an Ecobee or Google Nest enables you to establish temperatures for certain times of the day and reduce the temperature when necessary, thus helping you to save money and maintain your cooling without having to constantly adjust the dial.

However, thermostat functionality is not just about comfort and convenience. A malfunctioning thermostat can cause the AC to run longer than necessary, increasing wear and tear on the system and leading to higher energy costs. Therefore, it’s important to ensure that your thermostat is functioning correctly and properly calibrated.

Common Air Conditioning Problems and Solutions

Now that we’ve covered the warning signs of AC trouble and the key components to monitor, let’s dive into some common AC issues and their solutions. Whether it’s refrigerant leaks, inadequate maintenance, electric control failure, sensor problems, drainage problems, or a clogged or dirty filter, each of these issues can lead to significant discomfort and costly repairs if not addressed promptly.

But don’t panic just yet. Many of these issues can be detected early with the “smoke trick,” where you light a stick of incense and position it where the AC unit and the window frame meet or near duct, connections to detect leaks. And remember, potential refrigerant leaks, blocked or leaking ducts, and any electrical issues should be addressed by a professional at Quality Comfort Air Conditioning And Heating Inc. to ensure that they are properly fixed.

Refrigerant Leaks

Refrigerant is the lifeblood of your AC system. If your AC is low on refrigerant, it could mean that it was undercharged at installation, or it may have a leak. Refrigerant leaks can lead to diminished efficiency in your air conditioner, resulting in increased energy costs and reduced cooling capacity. It can also cause harm to other components of the system, such as the compressor and evaporator coil.

The only way to remedy a refrigerant leak is to have a professional technician at Quality Comfort inspect the system and repair the leak. Additionally, the technician will need to recharge the system with the appropriate amount of refrigerant. Do not attempt to fix a refrigerant leak on your own as it requires professional expertise and equipment.

Blocked or Leaking Ducts

Even if your AC unit is functioning perfectly, blocked or leaking ducts can wreak havoc on your system’s efficiency. Blocked or leaking ducts can reduce airflow, cause irregular cooling or heating, produce unusual sounds, and increase energy bills. It is recommended to have a professional HVAC technician at Quality Comfort Air inspect and repair ductwork, as they can assess for any blockages, leaks, or other issues that may be causing poor airflow or energy loss.

Sealing any leaks in the ductwork, replacing damaged or worn parts, and ensuring that the ducts are properly insulated are effective measures to improve airflow, eliminate odors, and prevent energy loss. Regular inspection and maintenance of ductwork are critical to ensuring the overall efficiency of your AC system.

Electrical Issues

Electrical issues are another common problem in AC systems. Damaged wiring, fraying, corrosion, and disconnection can all indicate electrical problems. If you notice stuttering or motor issues, frequent activation or deactivation, or unusual noises or odors, it may be time to call Quality Comfort. 

Remember, electrical issues are not something to be taken lightly. They can pose a risk to both your AC system and your home’s overall electrical system. Always consult a professional HVAC technician to diagnose and repair electrical problems. They possess the necessary expertise and experience to accurately identify and resolve the issue.

Preventative Maintenance Tips

Prevention is always better than cure, and your AC system is no exception. Regular cleaning and inspection, scheduled professional maintenance, and proper system sizing can go a long way in extending the life of your AC system and preventing costly repairs. By taking a few simple steps, you can ensure that your AC system runs smoothly and efficiently throughout the cooling season.

Changing or cleaning air filters is a simple but effective way to improve your AC’s efficiency and prolong its life. Similarly, maintaining a clearance of approximately 24 inches in all directions around the air compressor and condenser can ensure optimal performance.

Lastly, the thermostat, which serves as a communication tool between the AC and the environment, should be regularly checked to ensure it’s functioning correctly and is properly calibrated.

Regular Cleaning and Inspection

Regular cleaning and inspection of your AC system can help prevent malfunctions, extend equipment life, enhance energy efficiency, and improve indoor air quality. This involves cleaning and inspecting the air filters to ensure that the circulated air is clean and free of dust and other contaminants.

Additionally, the condenser and evaporator coils should be regularly cleaned and inspected to guarantee that the system is operating optimally and that the coils are not obstructed or leaking. The thermostat should also be inspected to ensure that the system runs at the precise temperature and that the thermostat is operating optimally.

Scheduled Professional Maintenance

While regular cleaning and inspection are important, nothing can replace the expertise of a professional HVAC technician from Quality Comfort Air Conditioning And Heating Inc. Regular professional maintenance of your HVAC system can result in decreased energy use, enhanced energy efficiency, extended system longevity, decreased likelihood of breakdowns, and improved indoor air quality. It is recommended to have professional HVAC maintenance done twice per year to ensure optimal operation.

During professional maintenance, Our technician will conduct an inspection of the system, clean the components, evaluate any potential issues, and perform any required repairs. 

Proper System Sizing

Last but not least, proper system sizing is critical for the overall efficiency of your AC system. Accurate system sizing can result in improved energy efficiency, cost savings, comfort, and air quality. Additionally, it can extend the lifespan of the equipment and decrease the necessity for repairs.

When determining the size of your AC unit, it is important to consider the size of your home, the number of windows, the amount of insulation, and the climate. An oversized system may incur higher initial costs, reduced efficiency, increased energy costs, and compromised comfort. To ensure that you select the correct size for your home, it is recommended that you consult a professional HVAC technician.

When to Consider Replacement

While regular maintenance can extend the life of your AC system, there will come a time when you’ll need to consider a replacement. The age of your system, the frequency of repairs, and energy efficiency ratings are all factors that can indicate it’s time for a new unit.

If your unit has necessitated AC repair service on multiple occasions within a short period of time, it might be more cost-effective to replace it. Additionally, if your current system has a low energy efficiency rating, upgrading to a newer model could result in significant energy savings.

Age of the System

The age of your AC system is a major factor to consider when deciding whether to repair or replace it. While the expected lifespan of an AC system is generally 10-12 years in Brevard County, Florida, this can vary depending on the system type and maintenance schedule.

When an AC system has surpassed 10 years of age, it may be more economical to substitute it with a newer, more energy-efficient version. Replacing an older system with a newer, more energy-efficient model can result in decreased energy costs, improved air quality, and extended system longevity.

Frequent Repairs

Frequent repairs can also indicate that it’s time to replace your AC unit. Common indications include warm air blowing out of the vents, insufficient airflow, frequent cycles, high humidity, water leaks, bad odors, and unusual noises. If you find yourself constantly calling for repairs, it may be more cost-effective to invest in a new unit.

To reduce the need for frequent repairs, it is advisable to clean and inspect your AC system regularly, schedule professional maintenance, and ensure that the system is adequately sized for your home. Remember, prevention is always better than cure.

Energy Efficiency Rating

Finally, consider the energy efficiency rating of your AC unit. Energy efficiency ratings provide an indication of how much energy an air conditioning system requires to cool a space. The higher the rating, the more efficient the system is.

To assess the potential energy savings of an upgrade, compare the SEER rating of your current system with the SEER rating of newer models. This will provide an indication of the efficiency gains available with newer models.


After traversing the landscape of AC maintenance and repair, we hope you now have a better understanding of how to keep your AC running smoothly and efficiently. Remember, early detection and repair of issues can save you from the discomfort of a broken AC and the cost of unnecessary repairs. Regular cleaning and inspection, scheduled professional maintenance, and proper system sizing can help extend the life of your AC system and prevent costly repairs. But when the time comes for replacement, consider the age of your system, the frequency of repairs, and energy efficiency ratings to make an informed decision. Here’s to a comfortable, cool home!

Frequently Asked Questions

How do I know if my AC needs repair?

If your air conditioning system is blowing warm air, the thermostat isn’t working, little air is coming out of vents, there are loud noises or strange odors coming from the unit, humidity isn’t being removed properly, or the AC seems to be having more problems than usual, it is likely time for repair or replacement.

It is important to address any issues with your air conditioning system as soon as possible. If you wait too long, the problem can become worse and more expensive to repair. Contact a professional HVAC technician at Quality Comfort to inspect your system and determine the best course of action.

How long should an AC system last?

On average, a well-maintained air conditioner should last 10-12 years. With proper maintenance and care, you can expect good performance for as long as 10 to 12 years.

Consider replacing it instead of repairing it if your unit is close to ten years old or older.

What are the early warning signs of AC trouble?

Unusual noises, increased energy bills, and insufficient cooling are signs that your AC might be in trouble, so keep an eye out for these symptoms.

What are the benefits of regularly cleaning or replacing air filters?

Regularly cleaning or replacing air filters can help your AC unit run more efficiently, saving energy and money while providing you with cool, clean air.