AC Service in Lexington, TN: Comprehensive Cooling Solutions for Your Home

When summer temperatures in Lexington climb into the 90s with humidity levels that make the air feel even hotter, your air conditioning system becomes essential for maintaining comfort and health in your home. At ADA AC & Heating, we understand that regular AC service isn’t just about preventing breakdowns—it’s about ensuring your system operates at peak efficiency, maintains healthy indoor air quality, and provides reliable cooling throughout the demanding Tennessee summer months.

Our approach to AC service combines decades of experience with modern diagnostic techniques to deliver comprehensive maintenance that extends equipment life and reduces energy consumption. Since Clarence Ada opened Ada Air conditioning in 1960 with the goal of creating a company that would provide the best quality and most honest service to the people he called his neighbors, we’ve maintained that same commitment to excellence and integrity in every service call we make.

Understanding Your Air Conditioning System’s Service Needs

Your air conditioning system consists of multiple components working in harmony to remove heat and humidity from your indoor air. The outdoor condensing unit houses the compressor, condenser coil, and fan motor, while the indoor air handler contains the evaporator coil and blower assembly. Between these major components, refrigerant lines carry the cooling medium that absorbs heat from inside your home and releases it outdoors. Each of these elements requires specific attention during routine service to maintain optimal performance.

Regular AC service addresses the gradual degradation that occurs through normal operation. Dust accumulation on coils reduces heat transfer efficiency by up to 40%, forcing your system to run longer cycles and consume more energy. Refrigerant levels can decline through microscopic leaks in connections and fittings, reducing cooling capacity and potentially damaging the compressor if left unchecked. Electrical connections loosen over time due to thermal expansion and contraction, creating resistance that generates heat and increases the risk of component failure. Our comprehensive service appointments address all these issues systematically, restoring your system’s efficiency and reliability.

The Complete AC Service Process

When we arrive for your scheduled AC service appointment, we begin with a thorough visual inspection of both indoor and outdoor units. This initial assessment helps identify obvious issues like damaged insulation, corroded connections, or signs of refrigerant leaks. We check the condition of the condensate drain line, which removes moisture extracted from your indoor air. A clogged drain can cause water damage and create conditions favorable for mold growth, making this seemingly simple component critical for both system function and indoor air quality.

Our technicians then proceed with electrical testing, measuring voltage and amperage at various points throughout the system. We verify that capacitors maintain proper microfarad ratings, as weak capacitors cause motors to draw excessive current and overheat. Contact points in contactors and relays receive careful inspection, as pitted or burned contacts create resistance that reduces efficiency and reliability. We test all safety devices, including high and low pressure switches, to ensure they’ll protect your system if operating conditions become abnormal.

The refrigerant system receives particular attention during our service visits. We measure superheat and subcooling values to verify proper refrigerant charge and system operation. These measurements tell us whether your system transfers heat effectively and whether any restrictions exist in the refrigerant circuit. If we detect low refrigerant levels, we perform leak detection using electronic sensors or ultraviolet dye to identify and repair the source before adding refrigerant. Simply adding refrigerant without addressing leaks wastes money and harms the environment.

Critical Maintenance Tasks That Protect Your Investment

Coil cleaning represents one of the most important yet often overlooked aspects of AC service. Your evaporator coil, located inside the air handler, accumulates dust and debris that passes through even high-quality filters. This buildup insulates the coil surface, preventing efficient heat absorption. We use specialized cleaning solutions and techniques that remove contamination without damaging the delicate aluminum fins. The outdoor condenser coil faces different challenges, collecting grass clippings, leaves, cottonwood seeds, and other outdoor debris. We carefully clean these coils using appropriate water pressure and cleaning agents to restore maximum heat rejection capability.

Filter replacement or cleaning, depending on your filter type, ensures adequate airflow through your system. Restricted airflow causes numerous problems, including frozen evaporator coils, overheated components, and reduced comfort. We help you select the appropriate filter for your needs, balancing filtration efficiency with airflow requirements. Higher MERV-rated filters provide better air cleaning but may restrict airflow in systems not designed for their increased resistance.

Benefits of Professional AC Service

• Energy Efficiency: Clean coils, proper refrigerant charge, and optimized airflow reduce operating costs by 15-25% compared to neglected systems
• Extended Equipment Life: Regular maintenance prevents premature wear, helping systems reach or exceed their expected 15-20 year lifespan
• Improved Air Quality: Clean coils and proper drainage prevent mold growth and reduce airborne contaminants
• Consistent Comfort: Well-maintained systems provide more uniform temperatures and better humidity control
• Fewer Breakdowns: Identifying and addressing minor issues prevents major failures during peak cooling season

Recognizing When Your AC Needs Professional Service

Between scheduled maintenance visits, certain signs indicate your system needs immediate attention. Unusual noises like squealing, grinding, or rattling suggest mechanical problems requiring prompt investigation. Reduced cooling capacity, even when the system runs continuously, often indicates refrigerant issues or airflow restrictions. Frequent cycling, where your system turns on and off repeatedly without satisfying the thermostat, wastes energy and stresses components. Ice formation on the evaporator coil or refrigerant lines signals serious problems requiring professional diagnosis and repair.

Rising energy bills without increased usage patterns often indicate declining system efficiency due to maintenance issues. Uneven cooling, where some rooms remain warm while others get too cold, suggests airflow imbalances or ductwork problems we can address during service. Excessive humidity despite continuous operation indicates your system isn’t removing moisture effectively, possibly due to oversizing, refrigerant problems, or coil issues.

Seasonal Considerations for Lexington AC Service

Spring represents the ideal time for AC service in Lexington, allowing us to identify and resolve issues before summer heat arrives. During this pre-season service, we verify proper operation of all components, clean coils that accumulated debris over winter, and ensure your system can handle the coming cooling load. Fall service, though less critical, helps prepare your system for winter dormancy and addresses any wear from summer operation.

Our service recommendations account for local conditions affecting AC systems in the Lexington area. High humidity levels throughout summer increase condensate production, making drain line maintenance especially important. Agricultural activities generate additional airborne particles during planting and harvest seasons, accelerating coil contamination. Temperature swings between seasons stress electrical components, making connection inspections crucial for reliability.

Regular AC service from ADA AC & Heating ensures your cooling system delivers reliable, efficient performance when you need it most, maintaining the comfort and health of your Lexington home while protecting your HVAC investment for years to come.