the latest news from David and Goliath HVAC

A stuck heat pump reversing valve causes no heat because the valve cannot shift refrigerant flow to heating mode, leaving your system blowing cool air instead. The valve sticks because of electrical stress, refrigerant pressure imbalances, or chronic overheating from upstream components. You turn up the thermostat on a cold Crowders Mountain morning, expecting warm air, but your vents blow cool or room-temperature air. If a new valve goes in without fixing the root cause, the replacement will stick or

When your heat pump compressor not engaging during heating cycle in Crowders Mountain, NC leaves you without heat on a cold morning, the compressor itself is usually the symptom, not the root problem. We see this issue regularly across the area. In most cases the compressor refuses to start because something upstream has either starved it of power, sent conflicting signals, or put it in a protective shutdown. Electrical supply trouble, a failing reversing valve, a locked contactor, refrigerant pressure

A stuck reversing valve stops your heat pump from switching into heating mode, leaving you without heat. The valve usually sticks because of electrical problems, refrigerant pressure imbalances, debris buildup, or airflow restrictions, not because the valve itself is defective. In most cases, a stuck reversing valve isn’t the real problem. It’s the symptom of something else going wrong upstream. We see this often: a homeowner replaces the valve, it works for a few weeks or months, then it sticks

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