Category: Maintenance

Technician inspecting internal components inside an open gas furnace cabinet during service. Best for blogs about furnace repair, furnace inspection, why your furnace isn't working, heating repair, furnace troubleshooting, and when to call for professional furnace service.
Heating

Furnace Not Blowing Hot Air Troubleshooting Bessemer City

When temperatures drop in Bessemer City during the cold months, a furnace not blowing hot air becomes an urgent problem — and the good news is that the most common culprit is also the easiest to check. Before you worry about a major breakdown, take a moment to inspect your thermostat settings. Make sure it’s set to “heat” mode rather than “fan” or “cool,” because a simple setting error accounts

Read More »
Couple sitting on a couch while using a remote to control a wall-mounted mini split air conditioner. Best for blogs about ductless mini splits, mini split operation, home cooling, and zoned comfort.
A/C Repair

Air Conditioner Not Cooling? Common Causes and When to Call

When your air conditioner is not cooling properly, the most common culprit we encounter is a dirty or clogged air filter restricting airflow — something you can check in under a minute by opening your return vent and pulling out the filter to see if light passes through. That said, we also regularly find low refrigerant from a leak, a failing compressor, frozen evaporator coils, or a faulty thermostat during

Read More »
Homeowner standing near a wall thermostat and looking confused while troubleshooting an indoor comfort issue. Best for blogs about thermostat problems, HVAC not turning on, and cooling or heating issues.
A/C Repair

AC Not Cooling Troubleshooting Guide: Diagnose Your System

The first step in any AC not cooling troubleshooting guide is to check your thermostat settings. Many times, the unit is simply set to “on” instead of “auto,” or the temperature target is too high. Once you’ve confirmed the thermostat is calling for cooling and the temperature is set below the current room temp, it’s time to look at the air filter. A clogged filter restricts airflow so severely that

Read More »
An HVAC technician in blue uniform performing diagnostic testing on a furnace unit using a digital multimeter. Best for blogs about HVAC repair, evaporator coil issues, air handler service, indoor unit maintenance, troubleshooting airflow or cooling problems.
Heating

Furnace Not Blowing Hot Air Troubleshooting Guide

When your furnace isn’t blowing hot air, troubleshooting starts with one simple check: make sure your thermostat is set to “heat” mode and the temperature is at least five degrees higher than your current room temperature. It sounds basic, but we see this mix-up often during our service calls, so it’s worth verifying first. That said, if your thermostat settings are correct and you’re still getting cold air—or no air

Read More »
Outdoor heat pump unit installed on a pad beside a brick exterior wall.
Heating

Heat Pump Crowders: Clearance Issues Hurting Efficiency

If your commercial heat pump system seems to be working harder than it should, or you’ve noticed uneven temperatures across your building despite recent service, heat pump crowders might be quietly sabotaging your equipment’s efficiency. In simple terms, heat pump crowders are objects, structures, or landscaping that sit too close to your outdoor unit. They block airflow, trap heat, and force your system to strain just to keep up with

Read More »
winter furnace maintenance charlotte
Maintenance

Winter Furnace Maintenance Charlotte | Expert Guide

When Charlotte’s winter temperatures drop and your family depends on steady warmth indoors, the last thing you want is a furnace breakdown in the middle of a cold night. That’s why winter furnace maintenance Charlotte homeowners trust isn’t just a suggestion—it’s essential protection for your comfort, safety, and wallet. Even though our winters are milder than up north, furnaces here still work hard through months of cycling on and off.

Read More »
commercial hvac maintenance
Maintenance

Commercial HVAC Maintenance: Essential Guide for 2024

Running a successful business means keeping all your systems working smoothly. Your heating and cooling equipment is no exception. Commercial HVAC maintenance is essential for preventing unexpected breakdowns. It also controls energy costs and ensures a comfortable environment for employees and customers alike. At David & Goliath HVAC, we’ve seen firsthand how a solid maintenance plan can save business owners thousands of dollars. In fact, regular upkeep typically extends equipment

Read More »
summer ac tune up specials charlotte
Maintenance

Summer AC Tune Up Specials Charlotte: Save Big in 2024

As Charlotte temperatures soar into the 90s, your air conditioning system works overtime to keep your family cool and comfortable. That’s why smart homeowners take advantage of summer AC tune up specials Charlotte to ensure their systems are running at peak efficiency before the heat becomes unbearable. At David & Goliath HVAC, we understand that Charlotte’s humid summers can be brutal on both your comfort and your wallet. Our summer

Read More »
seasonal hvac maintenance packages charlotte
Maintenance

Seasonal HVAC Maintenance Packages Charlotte NC Guide

When Charlotte’s sweltering summers and chilly winters put your HVAC system to the test, seasonal hvac maintenance packages charlotte homeowners rely on offer the perfect solution to keep your home comfortable year-round. These comprehensive service plans ensure your heating and cooling equipment operates efficiently, saves energy, and avoids costly breakdowns when you need it most. What Are Seasonal HVAC Maintenance Packages? Seasonal maintenance packages are comprehensive service agreements that provide

Read More »
AC Repair in Dallas NC | David and Goliath HVAC
A/C Repair

The Complete AC Maintenance Guide

Dallas, NC, experiences extremely high summer temperatures, so having a reliable air conditioning system is important for comfortable living. We at David and Goliath HVAC specialize in providing detailed maintenance services that enhance the performance of an AC, making it more efficient. In this article, we will explain why regular AC maintenance is important for optimal functioning, comfort improvement, and long-term savings. Why Should You Prioritize AC Maintenance? Better System

Read More »
Ac Infinity
Maintenance

Extend Your AC’s Life with the AC Infinity Maintenance Plan from David & Goliath HVAC

Extend Your AC’s Life with the AC Infinity Maintenance Plan from David & Goliath HVAC In the height of summer, when temperatures soar to their peak, a reliable and efficient air conditioning system isn’t just a comfort—it’s a necessity. At David & Goliath HVAC, we’re deeply aware of the pivotal role that a fully operational air conditioner plays in ensuring your home remains a sanctuary of comfort against the sweltering

Read More »
Heating Services Dallas NC
Maintenance

Ensuring Peak Performance: The Importance of Commercial AC Maintenance with David & Goliath HVAC in Gastonia, NC

In the bustling heart of Gastonia, North Carolina, where the summers can be unforgivingly hot, the importance of a fully functioning air conditioning system cannot be overstated. Businesses, large and small, rely on their commercial AC units not just for the comfort of their employees and customers, but also for the protection of equipment and inventory that could be sensitive to heat and humidity. Recognizing this critical need, David &

Read More »
emergency heat
Maintenance

Importance of Regular Heat Exchanger Maintenance

Importance of Regular Heat Exchanger Maintenance In the world of HVAC systems, heat exchangers play a pivotal role. They are the heart of the system, transferring heat from one medium to another. However, like any other mechanical component, they require regular maintenance. This is where the importance of heat exchanger maintenance comes into play. Neglecting this crucial task can lead to decreased efficiency, increased energy consumption, and even potential safety

Read More »
cracked heat exchanger
A/C Repair

freon leak in ac unit

When your AC unit starts acting up, it’s easy to feel the heat. One common issue is a freon leak. Freon, or refrigerant, is the lifeblood of your AC unit. It’s what keeps your home cool and comfortable. But when it leaks, it can lead to a host of problems. Not only does it affect your AC’s performance, but it can also pose health risks and harm the environment. In

Read More »
Ac Repair in Dallas NC
A/C Repair

Ready for Summer in Gastonia? Ensure Your AC’s Efficiency Now!

With summer on the horizon in Gastonia, NC, ensuring your air conditioning (AC) system isn’t just running, but running efficiently, is more important than ever. At David & Goliath HVAC, we understand the unique challenges that the North Carolina heat can pose. Here’s why making sure your AC is in top shape before the summer heat hits is crucial for your comfort, wallet, and the environment. Beat the Heat with

Read More »
Scroll to Top