The Top 5 Most Common Repairs for Air Conditioning Systems You Need to Know

Summer is here, and your air conditioning system is working overtime to keep your home cool and comfortable. But what do you do when your AC unit breaks down? Knowing the most common repairs your system may need can save you time and money in the long run.

In this article, we've compiled a list of the top 5 most common AC repairs you need to know. These simple fixes will help you troubleshoot the problem and possibly even repair it yourself. From clogged air filters to faulty capacitors, we've got you covered.

Now is the time to arm yourself with the knowledge and skills you need to keep your air conditioning system running smoothly all summer long. So, without further ado, let's dive into the top 5 most common repairs for air conditioning systems!

1. Clogged Air Filters

One of the most common issues with air conditioning systems is a clogged air filter. Air filters are responsible for removing dirt, dust, and debris from the air, ensuring that the air circulated by the system is clean and healthy to breathe. However, over time, air filters can become clogged with debris and restrict the airflow, causing the system to work harder than it needs to.

Clogged air filters can lead to a range of issues, including reduced efficiency, increased energy bills, and even system breakdowns. Fortunately, replacing air filters is usually a quick and easy fix that can prevent these problems from occurring.

It's recommended that air filters should be replaced every 1-3 months, depending on how frequently the system is used and the air quality in the home. Regular filter replacements can help to ensure that the system operates efficiently and keeps your home comfortable and healthy all year round.

Clogged Air Filters

One of the most overlooked causes of air conditioning breakdowns is a clogged air filter. This happens when dirt, dust, and other debris accumulate in the filter and obstructs the airflow. When the filter is clogged, your air conditioner has to work harder to pump cool air into your home. This can lead to an increase in energy bills and eventually cause your system to fail.

Regularly changing your air filter can extend the life of your air conditioning and save you money in the long run. It is recommended that you change your air filter every three months, but you may need to do it more often if you have pets or live in a dusty area.

If you notice reduced airflow or unusual noises coming from your air conditioning system, it may be time to check and replace the air filter. A dirty or clogged filter can also lead to poor indoor air quality and cause respiratory problems.

Replacing your air filter is a simple and inexpensive fix that can prevent more costly repairs down the line. Don't forget to make this a regular part of your air conditioning maintenance routine!

Refrigerant Leaks: A Common Culprit for Air Conditioning Repair

One of the most common causes of air conditioning problems is refrigerant leaks. The refrigerant is a vital component of your air conditioning system, as it is responsible for cooling the air that is circulated throughout your home or building.

Over time, leaks can develop in the refrigerant lines, causing the refrigerant to escape from the system. This not only impairs the cooling efficiency of your air conditioning but can also lead to bigger problems such as the compressor failure.

Signs that your air conditioning system may have a refrigerant leak can include: reduced cooling performance, hissing or bubbling sounds coming from your AC, and visible leaks around your system.

Ignoring this issue can lead to extensive repairs down the line, so it’s essential to address any refrigerant leak promptly. A professional HVAC technician can diagnose the issue and repair any damage, and recharge the system so that it can perform effectively again.

Protect your air conditioning system by scheduling regular maintenance with a certified HVAC technician who can inspect the system, address any issues, and ensure peak performance all year round.

By keeping an eye out for refrigerant leaks and addressing them promptly, you can extend the lifespan of your air conditioning system, improve your comfort, and save money on energy costs.

Faulty Capacitors: The Common Culprit Behind Air Conditioning Problems

Air conditioning systems rely on capacitors to start up and keep running. These electrical components store energy and release it to power the various parts of your AC unit. When capacitors are faulty, however, your air conditioning system may not function properly. Here are the signs of a bad capacitor and what you can do about it:

1. AC Unit Won't Start

If you notice that your air conditioning system won't start, a faulty capacitor could be the culprit. When the capacitor fails, it cannot store enough energy to start the compressor and fan motor, which leads to a complete AC system shutdown.

2. AC Unit Shuts Off On Its Own

Another common sign of a bad capacitor is when your AC unit shuts off on its own before completing a cooling cycle. The capacitor may have enough power to start the system, but it cannot sustain it for the duration of the cooling cycle.

3. AC Unit Makes Strange Noises

When capacitors fail, they can produce a humming or buzzing sound. This noise can be annoying and may indicate a larger issue with your AC unit.

What to Do About Faulty Capacitors

If you suspect that your air conditioning system's capacitor is faulty, the best thing to do is to call a trusted HVAC technician. A professional can properly diagnose the issue and replace the faulty capacitor with a new one. Trying to fix a faulty capacitor on your own can be dangerous and may lead to further damage to your air conditioning system.

Don't let a faulty capacitor ruin your summer comfort. Keep an eye out for the signs of a bad capacitor and call in the HVAC experts for repairs.

Broken Thermostats

A thermostat is one of the most important parts of an air conditioning system. It is responsible for regulating the temperature of the room, and if it fails, it can cause a lot of inconvenience. A broken thermostat can be due to a variety of reasons, such as a faulty sensor or a malfunctioning circuit board.

The signs of a broken thermostat can vary, but the most common one is when the AC unit fails to turn on or off. Another indication is if the temperature on the thermostat doesn't match the actual room temperature. Strange noises or sudden spikes in energy bills can also indicate a malfunctioning thermostat.

Fixing a broken thermostat can be a simple or complex task, depending on the issue. In some cases, replacing the batteries or cleaning the unit can resolve the problem. But if the issue is more severe, such as a damaged circuit board, then a professional technician may need to replace the unit.

To avoid thermostat issues, it's important to have your AC system regularly maintained by a qualified technician. This includes checking and testing the thermostat's function and accuracy.

Overall, a broken thermostat is a minor repair in comparison to other issues that air conditioning systems can encounter. However, it's essential to address it promptly to prevent further damage to the system.

Dirty Coils: A Major Cause of Air Conditioner Dysfunction

One of the most common and easily preventable issues with air conditioning systems is the buildup of dirt and debris on the coils. Coils play a crucial role in the cooling process, as they transfer heat from inside your home to the outdoor unit. When dirt and debris accumulate on the coils, it creates a barrier that makes it difficult for the coils to work effectively. This results in less efficient cooling and can lead to more significant problems over time.

Dirty coils can cause a plethora of issues with your air conditioner, including reduced cooling efficiency, increased energy consumption, and compressor overheating. When your system's compressor overheats, it can cause serious damage to the unit, resulting in costly repairs or even a full replacement.

To prevent dirty coils from causing problems with your air conditioner, it's essential to schedule regular maintenance with a professional HVAC technician. During a maintenance visit, the technician will clean and inspect your system's coils, ensuring that they can function efficiently.

You can also take steps to prevent coil buildup by changing your air filter regularly and keeping the area around your outdoor unit free from dirt, leaves, and debris. It's also essential not to block the airflow around your air conditioner, as this can increase the chances of dirt accumulating on your coils.

In conclusion, dirty coils are one of the most common and easily preventable issues with air conditioning systems. Regular maintenance and preventative measures can go a long way in ensuring that your system functions correctly, preventing costly repairs and replacements in the future.

Take Care of Your AC System and Enjoy a Comfortable Climate at Home

Regular maintenance and occasional repairs are necessary to keep your air conditioning system in tip-top shape. Understanding the most common problems that can arise and knowing how to address them will save you time, money, and stress in the long run. By taking proper care of your AC system, you can enjoy a comfortable indoor climate all year round, no matter what the weather is like outside. So, keep these top five repairs in mind and don't hesitate to call a professional when needed.

Frequently Asked Question

Understanding the type of air conditioning system you have is important for proper repair and maintenance. Many homeowners are unaware what kind of AC unit they own, however it can be identified by looking at a few key features. There are five primary types of air conditioning systems that include split-system, central-air, window-unit, packaged-unit, and ductless mini-split units.


Split-systems typically consist of an indoor evaporator coil connected to a condensing unit outside the home. The exterior portion then pumps refrigerant back into the interior evaporator coils in order to cool down your house or business. Split-systems come in two variations; heat pump which can both cool and heat depending on season and traditional cooling only units which just provide cooling during summer months. Central air systems use the same outdoor components as described above with multiple evaporator coils strategically placed throughout the building instead of one single unit. This allows individual rooms to be cooled without having to install separate AC units in each room like window units would require. Window units are able to be installed on any standard sized windowsill whereas Packaged Units tend to sit outside near ground level and service either entire homes or large businesses such as commercial buildings or department stores. Lastly, Ductless Mini Splits offer similar flexibility as Window Units but do not require any existing vents since their design requires direct placement within a wall instead of inside a window sill frame.


A professional technician will be able conduct thorough inspections and troubleshooting services when needed to identify exactly what type of air conditioner you possess so repairs can begin quickly for maximum efficiency and cost savings over time. Knowing how many evaporation coils exist in your property as well as where all these pieces connect together can help determine if you need Split Systems or Central Air installed before beginning work on other parts such as compressors or thermostats requiring replacements or upgrades due to age.

The question of whether to repair or replace an air conditioner (ac) is one that many homeowners face. When deciding on the best course of action, it is important to consider both short-term and long-term costs as well as the expected lifespan of a repaired or replaced ac unit. A thorough evaluation by an experienced air conditioning repair technician can help with this decision.


When repairing an ac unit, the cost typically includes parts and labor for diagnostics and repairs. It may be worthwhile to repair an old system if there are only minor issues such as worn out fan blades or clogged filters. However, if more extensive damage has occurred due to age or wear and tear, then replacing the entire system could be a better option in terms of energy efficiency and overall performance over time.


On the other hand, installing a new ac unit involves not only the initial cost but also potential additional expenses such as ductwork replacement and installation fees. Factors like these should all be taken into account when weighing up the pros and cons of repairing versus replacing your existing system. Ultimately, having a professional assessment from an expert in air conditioning repair will provide you with insight into which scenario is most likely to offer value for money in both the near-term and long-term future.


Considering both options carefully before making a final decision allows homeowners to make informed choices about their air conditioning systems that will best meet their needs while taking financial considerations into account at the same time.

When considering the cost of repairing an air conditioner, one might ironically expect to pay a premium for such services. In reality, however, it is surprisingly affordable to repair most air conditioning systems. Knowing the average cost of repairing an air conditioner can help individuals decide whether or not they should repair their system rather than replacing it entirely.


The average cost of air conditioning repair varies greatly depending on several factors including the age and brand of the unit. On average, basic maintenance costs for common brands like Carrier or Trane are around $200-400; whereas more complex repairs may range from $500-$800 based on parts and labor needs. However, some ac repair jobs may even go as high as $1,000 if extensive work is needed due to major problems with the system's components.


In addition to these prices, customers must also factor in any additional fees that will be charged by contractors during an air conditioner repair service call. Commonly seen charges include assessment fees, diagnostic fees, travel expenses and overtime rates among other things. To get an accurate estimate before committing to a contractor’s services, always ask about all associated costs upfront so there won't be any unexpected surprises later down the line.


It is important to note that while looking into how much you would need to spend on fixing your AC system can be helpful when making decisions regarding its future - what really matters most is finding a qualified technician who can provide quality repairs at reasonable prices no matter what type of brand or model you have installed in your home. With this knowledge in mind, individuals should feel confident in knowing that getting their AC repaired does not necessarily require them breaking their budget.

When looking for an air conditioner, energy efficiency is a key factor to consider. High-efficiency air conditioners can save homeowners money on their energy bills over the long term as they use less energy than lower-efficiency units. There are several factors that contribute to how efficient an air conditioner will be, and understanding these can help one determine which type of air conditioner is most energy efficient:

1. Energy Efficiency Ratio (EER): The ratio of cooling output divided by power input. This rating measures how efficiently the unit operates when it's running at full capacity and helps indicate how much electricity it uses while operating.

2. Seasonal Energy Efficiency Ratio (SEER): A measure of overall efficiency throughout a season or year compared with EER, meaning that it takes into account daily fluctuations in temperatures and humidity levels and shows how well the AC will perform even under extreme conditions.

3. Heating Seasonal Performance Factor (HSPF): Measures heating efficiency during cold months and is important for those who live in colder climates where heat pumps are used for both heating and cooling all year round.

4. Acoustic Rating: Refers to the noise level produced by the compressor motor inside your air conditioning system, so if noise control is a concern then this rating should be taken into consideration when selecting an AC unit.


Energy-saving ac models tend to have higher ratings across all categories mentioned above; however, cost may vary depending on features like size and installation requirements. It’s wise to compare different types of high-efficiency air conditioners before making a purchase to find the right balance between price point and performance capabilities, such as SEER ratings or HSPF scores, which may provide additional savings down the line due to increased energy efficiency over time. Additionally, checking reviews from various sources can also give insight into customer experiences with certain models so that one can make an informed decision about what fits best within their budget range while still delivering quality results in terms of energy saving capabilities.

Maintaining an air conditioner is essential for keeping it running efficiently and reliably. It’s a crucial part of any air conditioning system, yet many people are unsure about the maintenance frequency needed to keep their unit in optimal working order. Knowing when and how often your AC should be serviced will help ensure that you get maximum value from your purchase.


To begin with, there are some general rules that apply to all types of air conditioners: they must be inspected at least annually; filters should be replaced regularly according to manufacturer's instructions; coils should be cleaned as necessary; and ventilation systems should also be checked periodically. Researching the ac maintenance cost associated with these services can help you determine whether or not it is worth investing in regular maintenance visits from a professional technician. In addition, having an ac maintenance checklist that outlines which tasks need to be completed on each visit can help streamline the process and maximize the efficiency of your system.


It is important to note however, that different types of air conditioners may require more frequent inspections and/or additional services depending on their age, size and manufacturer’s specifications. Consulting a qualified repair technician can provide further insight into what type of air conditioning maintenance schedule is best suited for your specific situation. They can advise you on what kind of preventative measures are recommended - such as cleaning evaporator coils or checking refrigerant levels - as well as providing helpful tips on energy saving strategies tailored towards your individual needs.


Overall, proper upkeep of your AC unit helps maintain its performance over time by reducing breakdowns and emergency repairs while simultaneously preserving its lifespan so you don't have to replace it too soon. Investing in timely inspections and servicing sessions allows users to enjoy cool temperatures without worrying about unnecessary costs or disruptions caused by malfunctioning machinery.