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Gary Munson Heating & Air Conditioning Blog

Why a Revving Furnace Can Be a Problem

On the stage of home comfort, your furnace plays an important role. It provides warmth and coziness during the chilly months. If you’ve noticed your furnace sounds like it’s revving in Orlando, FL, suddenly and without warning, then it’s time to pay attention to these noises. Let’s unravel the reasons behind a revving furnace and why it can be more than just a noisy nuisance. We’ll explore the potential problems lurking beneath the revs and how addressing them can keep your home comfort in perfect harmony.

Overactive Blower Motor

This is the powerhouse behind your furnace. It circulates warm air throughout your home. If it’s revving up excessively it could be a sign of an overactive blower motor. This may result from issues such as a malfunctioning thermostat, incorrect fan settings, or a clogged air filter. A simple adjustment or maintenance can often rectify this and restore the balance to your furnace’s performance.

Restricted Airflow and Ductwork Issues

Blocked or closed vents, clogged air filters, or obstructions in the ductwork can force the blower motor to work harder to maintain proper circulation. This not only strains the system but can also lead to uneven heating throughout your home. Regularly checking and cleaning vents and filters can help solve this issue.

Leaky or poorly connected ductwork can disrupt the airflow and prompt the furnace to work harder to compensate. This not only contributes to a revving sound but also compromises energy efficiency. Sealing and insulating ducts can enhance overall performance and reduce unnecessary strain on your furnace.

Incorrect Gas Pressure

For gas furnaces, an incorrect gas pressure setting can cause the system to rev excessively. This issue requires immediate attention from a qualified HVAC technician. An experienced professional can adjust the gas pressure to the manufacturer’s specifications and make sure that your unit is operating safely.

Thermostat Troubles

Your thermostat acts as the conductor, leading your furnace’s performance. If it’s malfunctioning or incorrectly calibrated it can cause your furnace to rev up unnecessarily. Check your thermostat settings, replace batteries if needed, and consider having the thermostat calibrated or replaced by a professional.

Potential Mechanical Problems

In some cases, the noises that your furnace is making may indicate more serious mechanical issues, such as a failing motor or damaged components. If you’ve ruled out common culprits like dirty filters or restricted airflow it might be time to consult with a professional technician for a thorough inspection.

While a revving furnace may initially seem like a mere annoyance, it often serves as a beacon signaling underlying issues that warrant attention. Regular maintenance, prompt troubleshooting, and addressing problems as they arise can keep your furnace running smoothly.

If you find your furnace revving up more than it should, consider it a cue to delve into the potential causes and restore your home’s comfort. Contact Gary Munson Heating & Air Conditioning today!

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