Category: A/C Repair

If you’re shopping for a new air conditioning system, you’ve likely heard about r454b refrigerant. You may also be talking with HVAC contractors about replacements. This newer refrigerant is quickly becoming the industry standard. Meanwhile, we’re phasing out older refrigerants to meet environmental regulations. At David & Goliath HVAC, we’re helping homeowners throughout Dallas, Gastonia, Charlotte and surrounding areas navigate this transition. That’s why we want to explain what this

Have you ever wondered how your air conditioner actually makes your home cooler during those sweltering North Carolina summers? The magic happens through the cycle of refrigerant. This fascinating process transfers heat from inside your home to the outdoors. At David & Goliath HVAC, we believe understanding this essential process helps you recognize when something isn’t working quite right. Plus, it helps you know when it’s time to call in

If you’ve been shopping for a new air conditioner recently, you’ve probably heard technicians or salespeople mention R32 refrigerant as the next big thing in cooling technology. Since we started installing systems with this newer refrigerant here in Dallas, NC and throughout the Charlotte metro area, homeowners have asked us countless questions about what makes it different. That’s why we wanted to break down everything you need to know about

When summer heat hits Dallas and Gastonia, many homeowners crank up their air conditioning. However, they often overlook a simple way to boost comfort and slash energy costs. Setting your ceiling fan direction for summer properly can make your AC’s job easier. The right fan rotation creates a cooling breeze that makes you feel up to 8 degrees cooler. We’ve helped countless homeowners in the Charlotte area discover that their

If you’ve heard discussions about R410A refrigerant lately—whether from an HVAC technician, a neighbor, or online articles—you’re probably wondering what makes this refrigerant so important. At David & Goliath HVAC, we work with R410A systems every single day in Dallas, Gastonia, Charlotte, and throughout the surrounding areas. This refrigerant has become the standard in modern air conditioning units. However, many homeowners don’t fully understand what it is, why it matters,

Staying on top of the latest HVAC news can help you make smarter decisions about your home’s heating and cooling systems. The HVAC industry is constantly evolving, with new technologies, efficiency standards, and best practices emerging every season. For homeowners in Dallas, Gastonia, Charlotte, and the surrounding North Carolina areas, understanding these developments means better comfort, lower energy bills, and fewer unexpected breakdowns. That’s why David & Goliath HVAC is

If you’ve noticed increased static electricity, cracking wood floors, or dry skin during the colder months, you’re likely dealing with low indoor humidity. Understanding how to identify when you need professional humidity solutions is essential for your comfort and health. This is especially important here in Dallas, NC, where winter air can be particularly dry. Low humidity doesn’t just make you uncomfortable—it can also damage your home, aggravate respiratory issues,

When winter arrives in the Charlotte and Dallas, NC area, many homeowners notice their skin feeling dry. Additionally, they experience increased static electricity and persistent coughs that won’t go away. These uncomfortable symptoms often point to one common problem: low indoor humidity. If you’re wondering how to increase humidity in your house during those cold, dry months, you’re not alone. Low humidity is a widespread issue that affects both comfort

Nothing feels worse on a scorching summer day in Dallas, NC than discovering your air conditioner blowing hot air instead of the cool relief you’re expecting. When you’re counting on your AC to keep your family comfortable, hot air coming from your vents is more than just an inconvenience—it’s a signal that something’s wrong with your cooling system. At David and Goliath HVAC, we understand the frustration homeowners feel when

When your air conditioner stops blowing cold air during North Carolina’s sweltering summer, it can turn your comfortable home into an unbearable hotbox. This frustrating problem affects countless homeowners in Dallas, Gastonia, and Charlotte, especially during peak cooling season when you need your AC most. At David & Goliath HVAC, we’ve diagnosed and repaired hundreds of cooling issues throughout the region. While some causes are simple, others require immediate professional

Your air conditioning system works tirelessly to keep your Dallas, NC home comfortable during sweltering summer months. But like any hardworking equipment, it sends warning signals when something isn’t right. Recognizing these signs early can save you from costly emergency repairs and uncomfortable nights without cooling. At David & Goliath HVAC, we’ve seen firsthand how small issues snowball into major problems when homeowners miss the early warning signs. Much like

When your AC unit is running but not cooling your Dallas, NC home, it’s one of the most frustrating HVAC problems you can face. The system seems to be working—you hear it humming along—but your house remains uncomfortably warm. At David & Goliath HVAC, we’ve diagnosed this issue countless times, and understanding the warning signs can help you identify when it’s time to call in the professionals. Common Warning Signs

When your HVAC system suddenly stops working, a blown fuse might be the culprit. Understanding the warning signs of a blown HVAC fuse can help you identify the problem quickly and know when to call for professional help. At David & Goliath HVAC, we’ve seen countless fuse-related issues throughout Dallas, Gastonia, and Charlotte, and we’re here to help you recognize when this small but mighty component needs attention. What Is

When summer heat strikes Dallas, NC and surrounding areas, every homeowner looks for ways to stay cool without breaking the bank. One of the simplest yet most overlooked strategies involves something you probably look at every day: your ceiling fans. Understanding proper fan direction for summer can significantly boost your home’s cooling efficiency while reducing energy costs. At David & Goliath HVAC, we’ve seen countless homes where incorrectly rotating ceiling

When it comes to indoor air quality, homeowners in Dallas, Gastonia, and Charlotte are discovering the powerful benefits of HVAC air scrubbers. These advanced air purification systems work seamlessly with your existing HVAC system to eliminate airborne contaminants, allergens, and odors that traditional filters simply can’t capture. At David & Goliath HVAC, we’ve seen firsthand how air scrubber technology transforms home environments, providing cleaner, healthier air for families throughout North