the latest from David and Goliath HVAC
the latest news from David and Goliath HVAC
Welcome to our News & Insights page at David and Goliath Heating and Cooling! Here, we share the latest updates, tips, and trends in the heating and cooling industry. Our blog is a treasure trove of information designed to help you make the most of your HVAC systems.
AC Evaporator Coil Frozen Solid in Dallas, NC: Causes & Fixes
If you’re staring at an ac evaporator coil frozen solid in Dallas, NC, the first thing to check is your air filter — because a dirty, clogged filter is hands-down the most common reason your indoor coil turns into a block of ice. When the filter restricts airflow, your evaporator coil can’t absorb enough heat from the air passing over it. Refrigerant stays too cold, and moisture freezes right onto the coil. That said, a frozen coil can also signal
AC Refrigerant Leak from Copper Lines in Stanley, NC
An AC refrigerant leak from copper lines in Stanley, NC isn’t just an inconvenience — it’s a problem that quietly drives up your energy bills, puts extra strain on your compressor, and can eventually leave you without cooling during our hot, humid summers. Because refrigerant is what actually absorbs heat from your indoor air, even a slow leak forces your system to work harder and longer while delivering less comfort. Copper refrigerant lines run between your outdoor condenser and indoor
AC Condenser Fan Not Running in Mount Holly, NC
Many homeowners think the outdoor fan is supposed to cycle on and off like the indoor blower. So when they notice their ac condenser fan not running in Mount Holly, NC, they assume it’s normal—but that’s usually not the case. In fact, the outdoor fan should spin whenever your compressor is running. If the compressor hums but the fan stays still, the most common culprit is a failed capacitor. This small electrical component gives the motor the boost it needs
Furnace Repair Denver: Signs, Process & When to Call
When the first cold snap hits Denver, NC, furnace problems tend to reveal themselves at the worst possible moment — usually on a freezing morning or late in the evening when your family needs warmth the most. If your furnace is blowing cold air, cycling on and off repeatedly, making unusual noises, or failing to start altogether, you’re likely searching for reliable furnace repair Denver services to restore comfort quickly. Most furnace issues can be diagnosed and repaired by a
Lennox vs Carrier HVAC Systems: Which Brand Is Right for You?
Most homeowners think choosing between Lennox vs Carrier HVAC systems is a simple matter of picking the more famous name, but the truth is neither brand automatically wins for everyone. For most homes in the Dallas area, Carrier edges ahead thanks to its broader dealer network, consistent mid-to-high efficiency options, and slightly smoother parts availability when repairs are needed down the road. That said, Lennox takes the lead if you prioritize ultra-quiet operation or want access to the absolute highest-efficiency
Heat Pump Company Lincolnton: Expert Installation & Repair
Looking for a trusted heat pump company Lincolnton to keep your home comfortable year-round? Whether you’re thinking about installing a new heat pump system, noticing your current unit isn’t heating or cooling the way it used to, or simply need routine maintenance before the next season hits, choosing the right local team makes all the difference. We serve homeowners throughout Lincolnton and the surrounding areas with professional heat pump installation, repair, and maintenance services designed to maximize efficiency and extend
AC Compressor Replacement vs New Unit: Which is Right?
When you’re facing an AC compressor replacement vs new unit decision, replacing just the compressor usually makes sense if your system is less than ten years old and only the compressor has failed. However, a full system replacement is often the smarter move when your air conditioner is older, needs frequent repairs, or carries an outdated refrigerant. That’s why getting a professional assessment is so important. The right choice depends on your system’s age, the cost comparison between repair and
Why Is My Heater Blowing Cold Air? Common Causes & Fixes
If you’re wondering why your heater is blowing cold air, the most common culprit is a thermostat set to “ON” instead of “AUTO.” When the fan runs continuously, it pushes unheated air between heating cycles. That’s an easy setting to check in seconds. However, cold air from your heater can also signal more urgent issues like a malfunctioning pilot light, a tripped limit switch, dirty flame sensors, or problems with your heat pump’s reversing valve. Because some of these causes
Heat Pump Iron Station: Warning Signs & When to Call a Pro
If you’re searching for “heat pump Iron Station,” you might think Iron Station is a specific type or brand of heat pump system. In reality, though, it refers to the small town of Iron Station, NC, located just a short drive from our home base in Dallas. Heat pumps are incredibly popular in our region because they handle both heating and cooling efficiently. That makes them ideal for North Carolina’s mild winters and humid summers. When your heat pump starts
What Size Mini Split Do I Need? Complete Guide
Choosing the right cooling solution for your home starts with one key question: what size mini split do I need? Undersized units will run constantly without keeping you comfortable. Meanwhile, oversized systems will cycle on and off too frequently. This wastes energy and fails to dehumidify properly. That’s why we at David and Goliath HVAC help homeowners in Dallas, NC make informed decisions about mini split sizing. This is a critical factor that affects comfort, efficiency, and system longevity. In
Heat Pump Service in High Shoals: Repair & Installation
Many homeowners think a heat pump in High Shoals is only useful for cooling, but that’s actually only half the story. In fact, a heat pump High Shoals works year-round — cooling your home when temperatures climb and heating it efficiently when the cold settles in across Gaston County. Because our winters are mild and our summers can be sweltering, heat pumps offer a smart, energy-efficient alternative to traditional furnace-and-AC setups. Whether you’re considering an upgrade, dealing with uneven temperatures,
How Long Do AC Units Last? Lifespan, Signs & Replacement Tips
How long do AC units last? Most central air conditioning systems last between 15 and 20 years with proper care, though the actual lifespan can vary quite a bit depending on maintenance, usage, and local climate conditions. Here in the Dallas, NC area, summer heat pushes systems hard for months on end. Understanding your unit’s expected lifespan helps you plan ahead and avoid getting caught without cooling when you need it most. Whether you’re wondering if your current system is
Emergency Heat Pump in Denver NC: When to Call for Help
It’s 2 a.m. on a frigid January morning in Denver, NC, and you wake up shivering because your heat pump has stopped working entirely — that’s when you need an emergency heat pump in Denver NC. While not every heat pump hiccup requires an urgent call, certain situations can’t wait until business hours. Freezing temperatures put your family’s comfort and safety at risk when your heating fails. We’ve helped countless Denver homeowners through middle-of-the-night breakdowns, so we know how stressful
Heat Pump in Denver NC: Installation & Buying Guide
Looking for a heat pump in Denver NC that can handle both our humid summers and chilly winter nights? Heat pumps have become one of the most popular HVAC solutions for homeowners in Denver and the surrounding Lake Norman area because they deliver year-round comfort in a single, efficient system. Unlike traditional setups that require separate heating and cooling equipment, a heat pump moves heat rather than generating it, which means lower energy bills and consistent temperatures no matter the
How to Keep Your House Cool in Summer: A Gaston County Homeowner’s Guide
If you have lived through even one full summer in Gaston County, you already know the pattern. The mornings start mild, the afternoon sun turns the Piedmont into a slow oven, and by three o’clock the humidity is thick enough to feel on your skin the moment you step outside. Learning how to keep your house cool in summer around Dallas, Gastonia, and the surrounding towns is not about one clever trick. It is about a handful of small habits