Common Air Conditioning FAQs in Lexington, TN

Regular maintenance is key to keeping your air conditioner running efficiently. We recommend servicing your AC system at least once a year, typically in the spring before the cooling season starts. During a tune-up, our technicians clean the system, check refrigerant levels, inspect electrical components, and ensure everything is working optimally. Routine maintenance can improve efficiency by up to 15% and extend the lifespan of your unit. Learn more about our HVAC services.

Determining the right size air conditioner is crucial for comfort and energy efficiency. We calculate this using a load calculation, factoring in your home’s square footage, insulation, windows, and climate. For example, a 2,000 sq. ft. home in Lexington, TN, typically requires a 3 to 3.5-ton unit. Installing an undersized or oversized system can lead to poor performance and higher energy bills. Call us at (731) 703-8210 for a professional assessment.

Warm air from your AC can result from various issues, such as low refrigerant levels, a clogged filter, or a malfunctioning compressor. First, check your thermostat settings and ensure the filter is clean. If the problem persists, it’s best to call a professional. Ignoring the issue can cause more significant damage over time. Read more about troubleshooting AC issues here.

Improving efficiency starts with regular maintenance and proper use. Clean filters, sealed ducts, and optimal thermostat settings can lower energy use. Set your thermostat to 78°F when you’re home and higher when you’re away. For long-term efficiency, consider upgrading to an ENERGY STAR-certified unit, which uses up to 15% less energy. Discover more tips at ENERGY STAR.

SEER (Seasonal Energy Efficiency Ratio) measures the efficiency of an air conditioner. The higher the SEER rating, the more energy-efficient the system. In Lexington, TN, new AC units must have a SEER of at least 14, as per federal standards. Higher ratings may cost more upfront but result in lower energy bills over time. Contact Cross Heating and Air for recommendations tailored to your home’s needs.

The lifespan of an air conditioner is usually 10–15 years, depending on maintenance and usage. Regular tune-ups and timely repairs can extend its life. However, if your unit is over 10 years old and requires frequent repairs, replacing it with a newer, more efficient model might be more cost-effective. Learn about our replacement services.

Unpleasant odors from your AC can be due to mold, bacteria, or dirty filters. A musty smell often indicates mold growth in the ducts or evaporator coil. Burning smells might signify electrical issues. It’s crucial to address these problems promptly to maintain indoor air quality. Schedule a professional inspection to resolve the issue safely.

Air conditioners naturally dehumidify as they cool, but in high-humidity areas like Tennessee, additional steps might be needed. Ensure your unit is appropriately sized and functioning well. A whole-home dehumidifier integrated with your HVAC system can provide optimal comfort. Contact us to explore your options for reducing humidity effectively.

The decision to repair or replace depends on factors like the system’s age, repair costs, and energy efficiency. A good rule of thumb is the “5,000 rule”: multiply the repair cost by the unit’s age. If the total exceeds $5,000, replacement is likely a better investment. Our team can help you weigh your options and find the best solution.

Programmable thermostats save energy and enhance convenience by automating temperature adjustments. Setting schedules can reduce energy use by up to 10%. Smart thermostats offer additional features, like remote control and energy usage reports. We recommend installing a programmable thermostat to maximize your AC’s efficiency.

Yes, a well-maintained air conditioner can improve indoor air quality by filtering allergens like pollen and dust. Use high-quality filters and replace them regularly to ensure optimal performance. For severe allergies, consider adding an air purifier or UV light to your HVAC system. Contact us for tailored solutions to reduce allergens in your home.

This issue, called short cycling, may result from an oversized unit, a clogged filter, or refrigerant issues. Short cycling wastes energy and strains your system. It’s best to have a professional inspect your AC to identify and address the root cause. Call us today for fast, reliable service.

Signs your ducts need cleaning include visible dust buildup, uneven airflow, or increased allergy symptoms. Duct cleaning removes debris, improves efficiency, and enhances air quality. Our experts can assess your ducts and provide thorough cleaning services if needed.

DIY installation is not recommended for air conditioners. Proper installation requires specialized tools and expertise to ensure safety, efficiency, and compliance with local codes. Poor installation can void warranties and cause performance issues. Trust our licensed professionals at Cross Heating and Air for safe, reliable AC installation.

Warning signs include weak airflow, unusual noises, warm air, or increased energy bills. Ignoring these issues can lead to more significant damage. Regular maintenance helps catch problems early, saving you time and money. Schedule a repair with our expert team to restore your AC’s performance.