the latest news from David and Goliath HVAC

If your furnace limit switch tripping repeatedly in Mount Holly, NC is cycling your heat on and off every few minutes, the most common culprit is restricted airflow. A clogged air filter often forces the heat exchanger to overheat. A limit switch rarely fails on its own. When it trips over and over, it’s protecting your furnace from an upstream problem. This could be a failing blower motor, ductwork restriction, or even a cracked heat exchanger. Replacing just the switch

When your furnace igniter not glowing and pilot won’t light in Lucia, NC, most homeowners assume the igniter is broken. They think it just needs replacing. But that’s rarely the full story. A dark igniter and failed pilot are usually symptoms of a bigger problem upstream. The culprits include electrical supply issues, a failing gas valve, dirty flame sensors, airflow restrictions, or a control board sending the wrong signals. The igniter rarely fails on its own. Swapping it without diagnosing

A heat pump reversing valve stuck in heating mode in Iron Station, NC means your system can’t switch to air conditioning. No matter what you set on the thermostat, the heat pump stays in heating. With our unpredictable spring and fall weather, that leaves you uncomfortable the moment outdoor temperatures climb. Most homeowners assume the valve itself is the culprit and start looking for replacements. Yet the reversing valve rarely fails on its own. It’s almost always damaged by an

If your heat pump compressor cycling on and off rapidly in Mount Holly, NC has you wondering whether to call now or wait, this post will help you decide. It can also clarify whether the compressor itself is the real problem. Rapid cycling, often called short-cycling, usually points to an underlying issue. A failed compressor alone is rarely the only cause. Replacing that one part without diagnosing the root cause almost always leads to another breakdown. We’ll walk you through

If you’re worried about a furnace heat exchanger cracked leaking carbon monoxide in Mount Holly, NC, you’re right to take it seriously. A cracked heat exchanger can allow deadly carbon monoxide into your home’s air. If you have symptoms like headache, dizziness, or nausea, or if your carbon monoxide alarm is sounding, turn off your furnace, evacuate the home immediately, and call 911. Once you and your family are safe, continue reading to understand what causes this dangerous problem. That

Why is your furnace blower capacitor failing and humming in Stanley, NC, and what’s making it fail over and over? A humming blower paired with weak or no airflow almost always points to a failing capacitor. However, the capacitor itself is rarely the root problem. It’s usually a symptom of something bigger upstream. Most of the time, a capacitor burns out because the blower motor is drawing too much current from age or wear. Airflow restrictions can also force the

It’s an unseasonably warm April afternoon in Mount Holly, NC. You flip the thermostat to cooling mode because the sun has been baking your living room all day. But the air coming from the vents is still warm. Your heat pump reversing valve is stuck in heating mode. A stuck reversing valve usually isn’t a random part failure. Instead, it’s often the symptom of an upstream problem that forced the valve to stick or burn out. Simply replacing the valve

A furnace inducer motor making a rattling sound in Crowders, NC usually means something is loose, worn, or obstructed inside the motor assembly. The real problem is often why that happened, not just the noise itself. The inducer motor pulls combustion gases out of your heat exchanger and vents them safely outside. It runs every heating cycle and takes on a lot of wear. When you hear rattling, it’s typically a failed bearing, a loose blower wheel, or debris caught

You’re heading downstairs on a chilly Lucia morning to grab your coffee. You notice the basement feels colder than it should. Your furnace pilot light keeps going out in Lucia, NC, again. A pilot light that won’t stay lit is usually caused by a faulty thermocouple. This safety sensor detects whether the flame is present and shuts off gas flow if it isn’t. However, that failed thermocouple is often a symptom of a deeper issue. A draft pushing air into

If your furnace blower motor running constantly in Spencer Mountain, NC, you’re right to ask what’s causing it — a blower that never shuts off is usually a signal that something upstream has failed or been set incorrectly, and ignoring it can lead to higher energy bills, premature motor burnout, and uncomfortable temperature swings throughout your home. Most homeowners assume the blower motor itself is broken, but in reality the motor is almost always responding to a problem somewhere else

When the first cold snaps arrive here in Stanley, NC and furnaces fire up after months of sitting idle, one of the most dangerous issues we see is a furnace heat exchanger cracked and leaking carbon monoxide — and in most cases, the crack itself isn’t the real problem. It’s usually a symptom of an underlying cause that’s been wearing on your furnace for months or even years. Chronic overheating from restricted airflow, a neglected air filter that forced the

Many homeowners believe a furnace only needs repair when it stops working completely. In truth, waiting for a total breakdown often leads to more expensive fixes and uncomfortable nights. If you’ve noticed strange sounds, uneven heating, or higher energy bills this winter, your system is already telling you it needs attention — even if warm air is still coming through the vents. Furnaces rarely fail without warning, so catching these early symptoms means we can often resolve the issue with