7 Common AC Problems in Florida & How to Fix Them

In the scorching Florida climate, air conditioning is more than just a comfort; it's a necessity. With high temperatures and humidity, a well-functioning AC unit is essential for a comfortable home. However, AC problems are common in this region. Let's go through the most frequent AC issues Florida residents face, from weak airflow and leaks to complete breakdowns and how to prevent them. We'll also discuss how professional expertise can quickly restore your cool haven in the face of the relentless Florida sun.

The Florida Climate and Its Effects on AC Systems

Florida's climate is characterized by long periods of heat intensified by high humidity, presenting a relentless challenge for air conditioning systems. The constant demand for cooling to offset the unyielding tropical heat means that HVAC systems work harder and longer than in more temperate regions. This perpetual operation can increase the wear and tear on the system’s components, leading to more frequent breakdowns and maintenance demands. Recognizing how the local climate impacts AC performance is crucial for Florida homeowners, as it underpins the necessity for vigilant upkeep and prompt repairs to ensure their systems continue to function efficiently and effectively.


Common AC Problems Homeowners Face

Improper Airflow

One of the foremost indicators of an AC issue is diminished airflow, which often signals blockages or leaks within the ductwork, clogged filters, or malfunctioning fans. In Florida, where AC systems scarcely rest, such impediments not only degrade air quality but also hinder the unit's efficiency and capacity to cool. Regular inspections can preempt these blockages, ensuring that air freely circulates through the vents. Moreover, proper upkeep of filters, which can become quickly congested with dust and allergens in Florida's environment, is paramount in maintaining optimal airflow.


Refrigerant Leaks

Refrigerant, the lifeblood of any air conditioning system, is tasked with cooling and dehumidifying indoor air. Leaks in the refrigerant lines not only diminish the system’s cooling power but can also inflict environmental harm and lead to costly energy bills. In the humid climate of Florida, the constant workload on AC units heightens the potential for leaking, making it one of the most common AC problems. Homeowners might notice their system blowing warm air, increased humidity indoors, or hear a hissing sound indicating a leak. Professionals can address these leaks by identifying the source, repairing it, and replenishing the refrigerant to its proper level.


Electronic Control Failure

Florida's unpredictable storms and power surges can wreak havoc on an AC unit’s electronic controls. Over time, the repeated stress of turning the system on and off can wear down the thermostat and the internal controls governing the compressor and fans. Symptoms of control failure include erratic cooling, the system not starting, or it frequently turns on and off without significant temperature changes. Regular electrical inspections and surge protection measures can safeguard these delicate components, ensuring seamless operation and longevity of the system.


Drainage Problems

The high humidity in Florida doesn't just affect the air; it significantly increases the amount of condensation AC systems produce. This water, if not properly drained, can lead to blocked drain lines, water leaks inside the home, and subsequent mold growth. Ensuring that the drain line is clear of obstructions and the drain pan is free from algae formation are crucial steps in preventing water damage and maintaining indoor air quality. Routine checks during maintenance visits can avert these moisture-related issues, protecting the home from the potentially costly consequences of unchecked water accumulation.


Dirty Filters

The role of air filters in maintaining the health and efficiency of an AC system cannot be overstated. In Florida, where pollen, dust, and other air pollutants abound, filters can quickly become clogged, restricting airflow and forcing the system to work harder. This not only decreases efficiency but also impacts air quality and can shorten the system’s lifespan. Homeowners are advised to replace or clean air filters regularly—at least every 1-3 months—to ensure optimal system performance and prevent other related issues from arising due to poor air filtration.


AC Coils Freezing Up

Evaporator coils are prone to freezing when the system is low on refrigerant, the airflow is obstructed, or the coils are dirty—common occurrences in high-demand settings like Florida’s. Frozen coils inhibit the AC's ability to absorb heat, leading to a system shutdown or ineffective cooling. Regular maintenance that includes cleaning the coils and ensuring adequate refrigerant levels can prevent freezing. Ignoring this issue might not only result in discomfort, but also significantly increase energy consumption as the system struggles to maintain desired temperatures.


Capacitor and Contactor Problems

The capacitor and contactor in an AC unit function as the system's starters for the compressor and motors. High temperatures and frequent system use, typical of Florida's climate, can stress these electrical components, leading to failure. Signs of capacitor or contactor issues include a humming sound without the system starting, or the unit not turning on at all. Preventive maintenance checks allow for the early detection and replacement of these components before they lead to complete system failure, ensuring that your home remains a cool sanctuary from the Florida heat.


Preventative Maintenance Tips

Beyond professional repairs, proactive maintenance is key to a consistently cool and comfortable home in Florida. Here are some essential steps to remember to avoid common AC problems:


  • Regular Filter Changes: Think of your AC filter as its lungs. A clogged filter restricts airflow, making the system work harder and potentially leading to breakdowns. Replace or clean filters every 1–3 months, especially during peak usage.
  • Scheduled Professional Inspections: An ounce of prevention is worth a pound of cure. Schedule bi-annual professional checkups to catch minor issues before they become major problems. This ensures all components are in top shape and can identify potential refrigerant leaks or electrical problems.
  • Clean Around Outdoor Units: Debris and vegetation can obstruct airflow around the condenser unit, reducing efficiency and straining the system. Regularly clear away leaves, grass clippings, and other obstacles to ensure optimal performance.
  • Monitor Refrigerant Levels: Low refrigerant levels can indicate a leak, causing your AC to work inefficiently and potentially leading to compressor damage. Have a professional check and top off refrigerant levels during maintenance visits.
  • Install Surge Protectors: Florida's frequent thunderstorms can cause power surges that damage your AC system. Installing a whole-house surge protector safeguards your investment and ensures uninterrupted comfort.


By taking these preventive measures, you can extend the lifespan of your AC unit, avoid costly repairs, and enjoy consistent cooling throughout the year. Remember, a well-maintained AC unit not only keeps you comfortable but also contributes to a healthier indoor environment by improving air quality and circulation.


The Importance of Professional Help

Given the complexity of AC systems and the specific challenges posed by Florida's climate, professional expertise is almost always advisable. HVAC technicians like us at DC/AC Air and Heat possess the knowledge, tools, and experience needed to accurately diagnose and repair common AC problems, ensuring your home remains comfortable and safe. Our expertise extends to preventative measures, identifying potential problems before they escalate into costly repairs, and maximizing the lifespan and efficiency of your AC system. Regular professional servicing is a worthwhile investment that saves you time, money, and discomfort in the long run.


DC/AC Air and Heat: Your Premier Choice for AC Servicing in Florida

DC/AC Air and Heat has been Orlando and Central Florida's trusted provider of top-notch HVAC services for over 25 years. Our experienced and licensed technicians are proficient in all aspects of air conditioning and heating systems, from repairs and installations to maintenance, handling all makes and models. We understand the unique challenges of Florida's climate and respond swiftly to your needs, ensuring minimal disruption to your comfort. Our A+ BBB accreditation and countless positive Google reviews attest to our commitment to excellence and customer satisfaction. 



Contact us today through our contact page, at 321-436-6595, or dcacorlando@gmail.com, and experience the difference with DC/AC Air and Heat, where your comfort is our priority.