Portland family owned HVAC company

Is Furnace Noise Normal After Installation? Find Out Here!


Understanding whether rattling noises, buzzing, clicking sounds, or abnormal airflow are normal after furnace installation is a common concern for homeowners. After investing in a new furnace and having it installed, it’s natural to expect quiet operation. However, if you notice any airflow issues or rattling noises coming from the transformer, it may be a sign of a problem. Additionally, if you hear any buzzing sounds, it’s important to have it checked by a professional. However, it’s important to explore whether the clicking sounds, buzzing, or other unusual noises you hear are normal or if they indicate a problem that needs attention. These noises could be a sign of an issue with the airflow or an out-of-tune mechanism.

When a gas furnace is installed, various components like the heat exchanger, burner, and combustion chamber come into play. Estes Services runs the installation of these components. These components can generate different sounds during operation. While some level of noise is expected during furnace repair due to the combustion process and airflow, excessively loud or unusual noises may be a sign of an issue with an old furnace that requires professional inspection.

Addressing any unusual sounds such as scraping noise promptly ensures optimal furnace performance and prevents further damage. If you are experiencing any issues with your furnace, it is important to contact a professional heating service provider like Estes Services to address the problem. Ignoring these sounds could lead to potential heat problems and further damage to your furnace.

Understanding Normal and Abnormal Furnace Noises

Differentiating between normal operational sounds and abnormal noises

After the installation of an Estes Services furnace, it’s natural to wonder if the noises you hear are normal or cause for concern. Understanding the difference between normal operational sounds and abnormal noises can help put your mind at ease when it comes to your old furnace. If you notice any unusual sounds, it may be time to consider furnace repair services from Estes Services.

Normal furnace operation often produces gentle humming or air movement sounds, especially in Estes. These are typically consistent and predictable, indicating that your furnace is functioning as it should. It’s important to familiarize yourself with these typical sounds of an old furnace so that you can easily differentiate them from any unusual noises.

Recognizing typical sounds like gentle humming or air movement

When your furnace is running smoothly, you may notice a low-level humming sound. This is often caused by the motor and fan of an old furnace working together to circulate warm air throughout your home. You might hear the sound of air moving through the ductwork as it travels from the furnace to different rooms.

Another common noise associated with furnaces is a slight clicking sound when the unit turns on or off. This occurs as various components of an old furnace engage or disengage during each heating cycle.

Identifying unusual noises that may require further investigation

While some degree of noise is expected during furnace operation, certain sounds can indicate underlying issues that require attention. If you notice any of these unusual noises coming from your furnace, it’s advisable to investigate further:

  1. Banging or booming: These loud banging sounds could indicate an issue with ignition or delayed combustion in your furnace.

  2. Screeching or squealing: High-pitched screeching or squealing could be a sign of worn-out bearings in the blower motor of an old furnace.

  3. Rattling: Loose components within the furnace system can cause rattling sounds, which may require tightening or repair.

  4. Grinding: A grinding noise could suggest a problem with the blower wheel or motor assembly.

  5. Whistling: Whistling sounds may indicate air leaks in the ductwork, which can affect the efficiency of your furnace.

If you hear any of these abnormal noises, it’s recommended to contact a professional HVAC technician to diagnose and resolve the issue. Ignoring unusual sounds could lead to further damage or inefficiency in your furnace system.

Reasons for Increased Noise from New Furnaces

Explaining why new furnaces might produce more noise initially

When you get a new furnace installed, it’s not uncommon to notice an increase in noise compared to your old one. This can be perplexing and leave you wondering if something is wrong with the system. However, there are valid reasons why new furnaces tend to make more noise at first.

One of the main factors contributing to increased noise is the break-in period. Just like breaking in a new pair of shoes, furnaces also need time to settle in and adjust to their new surroundings. During this initial period, various components within the furnace may rub against each other or produce vibrations that result in additional noise.

Factors such as system break-in period and components settling in place

As mentioned earlier, the break-in period plays a significant role in the increased noise levels of a newly installed furnace. During this time, parts like motors, fans, and blowers may generate some extra noise as they adapt to their functioning environment. Air ducts expanding or contracting due to temperature changes can contribute to creaking or popping sounds.

Another factor that can cause increased noise is when components settle into place. When installing a new furnace, it’s possible that certain parts may shift slightly during transportation or installation. As these components settle into their proper positions over time, they may create temporary noises until everything stabilizes.

Assuring that excessive noise should decrease over time

The good news is that excessive noise from your new furnace should decrease over time as it goes through its break-in phase and components settle into place. It’s important to note that while some level of sound is normal for any operating furnace, excessively loud or continuous noises could indicate potential issues that require professional attention.

If you’re concerned about the level of noise coming from your new furnace after installation, here are a few steps you can take:

  1. Check the air filters: Dirty or clogged air filters can cause the furnace to work harder and produce more noise. Regularly cleaning or replacing the filters can help reduce noise levels.

  2. Inspect the burners: Dirty burners can lead to inefficient combustion, resulting in increased noise. Cleaning or servicing the burners can potentially resolve this issue.

  3. Examine the air ducts: Loose or improperly installed air ducts can create rattling or banging sounds. Ensuring that all ducts are securely fastened can minimize these noises.

Remember, it’s always best to consult a professional HVAC technician if you have concerns about unusual noises coming from your new furnace. They will be able to diagnose any underlying issues and provide appropriate solutions.

Troubleshooting Strange Sounds: Squealing and Screeching Noises

If you’ve recently had a furnace installed and are hearing strange sounds coming from it, you might be wondering if this is normal. Well, the answer is no! Furnace noise after installation is not something you should ignore. It could indicate underlying issues that need to be addressed.

Investigating Potential Causes Behind Squealing or Screeching Sounds

When your furnace starts making unusual sounds like squealing or screeching, it’s essential to identify the root cause. Here are some common culprits:

  1. Worn-out Belts: Over time, the belts in your furnace can become worn out or misaligned. This can result in a high-pitched squealing sound as they rub against other components.

  2. Motor Bearings: The bearings in the furnace motor may wear down over time due to regular use. When this happens, they can produce a screeching noise that indicates they need lubrication or replacement.

  3. Blower Wheels: If there’s an issue with the blower wheels, such as debris accumulation or damage, it can lead to unusual sounds like squealing or screeching.

Highlighting Issues like Worn-Out Belts, Motor Bearings, or Blower Wheels

Now that we’ve identified potential causes of these noises let’s discuss why addressing them promptly is crucial:

  1. Safety: Unusual noises from your furnace should never be ignored as they could indicate a safety hazard. Ignoring these warning signs may result in more significant problems down the line.

  2. Equipment Damage: Continued operation with worn-out belts or motor bearings can cause further damage to your furnace’s components. It’s important to address these issues early on to prevent costly repairs or even premature replacement of the entire system.

  3. Energy Efficiency: A malfunctioning furnace can lead to increased energy consumption and higher utility bills. By resolving issues like worn-out belts or motor bearings, you can ensure your furnace operates at its optimal efficiency, saving you money in the long run.

Recommending Professional Inspection to Resolve These Problems

If you’re experiencing squealing or screeching noises from your furnace after installation, it’s recommended to seek professional help. Here’s why:

  1. Expertise: HVAC technicians have the knowledge and experience to diagnose and resolve issues with your furnace effectively. They can identify the specific cause of the noise and take appropriate measures to fix it.

  2. Safety Precautions: Furnaces involve complex systems that require careful handling. Hiring a professional technician ensures that safety precautions are followed during inspections and repairs.

  3. Long-Term Solutions: DIY attempts may provide temporary relief, but they might not address the underlying problem completely. Professionals can provide long-term solutions that will prevent future noise issues.

Troubleshooting Strange Sounds: Metallic Scraping and Grinding Noises

Identifying Possible Sources of Metallic Scraping or Grinding Noises

After the installation of a furnace, it’s not uncommon to hear strange sounds coming from the system. One particular type of noise that can be concerning is a metallic scraping or grinding sound. These noises can be quite alarming, but it’s important to understand that they may not always indicate a major problem. However, it’s still essential to identify the source of these sounds to ensure the furnace operates optimally.

One possible culprit for metallic scraping or grinding noises is loose parts within the furnace. Over time, vibrations and regular use can cause components to become loose or dislodged. Loose screws, bolts, or panels can create a scraping sound as they rub against other parts of the furnace during operation. It’s crucial to identify and tighten any loose parts promptly.

Another potential cause for these noises is a damaged blower wheel. The blower wheel is responsible for circulating air throughout the duct system in your home. If this component becomes damaged or misaligned, it can produce a loud grinding noise when spinning. In such cases, professional assistance may be required to repair or replace the blower wheel.

Motor issues can also lead to metallic scraping or grinding noises in your furnace. A malfunctioning motor can result in irregular movements and contact between different parts of the system, causing friction and unwanted sounds. If you suspect motor problems as the source of these noises, it’s best to consult with an HVAC technician who can diagnose and resolve any issues with the motor.

Advising Prompt Action for Prevention and Safety

While metallic scraping or grinding noises may not always indicate a severe problem with your furnace, taking prompt action is crucial for preventing further damage and ensuring safety within your home.

Here are some steps you can take if you encounter these types of sounds:

  1. Turn off your furnace: If you notice unusual noises coming from your furnace, it’s advisable to turn off the system immediately. This will help prevent any potential damage from worsening.

  2. Contact a professional: It’s best to reach out to an HVAC technician who can inspect your furnace and identify the source of the metallic scraping or grinding noise. They will have the expertise to diagnose and resolve any issues effectively.

  3. Regular maintenance: To minimize the risk of encountering strange sounds in the future, make sure to schedule regular maintenance for your furnace. Routine inspections and cleaning can help prevent loose parts, damaged components, or motor issues that may lead to these noises.

Remember, addressing these issues promptly not only ensures optimal performance of your furnace but also helps maintain a safe and comfortable environment within your home.

Identifying Electrical Issues and Problematic Furnace Noises

It is expected to make some noise during its heating cycle. However, if you’ve recently had a furnace installation and are experiencing unusual noises, it could be an indication of electrical issues. Let’s dive into how electrical problems can contribute to abnormal furnace noises and why hiring an experienced technician for electrical repairs is crucial.

Faulty Wiring, Loose Connections, or Failing Capacitors

One common cause of abnormal furnace noises after installation is faulty wiring. If the wiring in your heating system is not properly installed or has become damaged over time, it can result in buzzing or humming sounds. Loose connections can also lead to similar noises as electricity arcs between disconnected wires.

Another culprit could be failing capacitors. Capacitors are responsible for storing and releasing electrical energy within the furnace’s ignition system. When these components begin to malfunction or fail altogether, they can produce clicking or popping sounds during the heating process.

The Importance of Hiring an Experienced Technician

Dealing with electrical repairs can be complex and potentially dangerous if not handled correctly. That’s why it’s crucial to hire an experienced HVAC technician who specializes in furnace repair and maintenance. They have the knowledge and expertise to identify and resolve any electrical issues that may be causing abnormal noises in your newly installed furnace.

Attempting DIY repairs on your own without proper training can lead to costly mistakes or even pose a risk of electrocution. By relying on a professional technician, you can ensure that the necessary repairs are done safely and effectively.

Potential Consequences of Ignoring Electrical Issues

Ignoring abnormal furnace noises stemming from electrical problems can have serious consequences for both your comfort and safety at home. Here are some potential risks:

  1. Increased Energy Consumption: Electrical issues within your heating system can cause it to work harder than necessary, resulting in higher energy bills.

  2. System Malfunction or Failure: Neglecting electrical problems can lead to further damage to your furnace, potentially causing it to malfunction or fail entirely.

  3. Safety Hazards: Faulty wiring or loose connections can increase the risk of electrical fires or carbon monoxide poisoning if gas leaks occur.

Solutions for Blower Wheel and Blower Motor Noises

If you’ve recently installed a furnace and are experiencing loud noises coming from the blower wheel or blower motor, don’t panic! There are several solutions to address these issues and restore peace and quiet to your home.


One common cause of noisy blower wheels or motors is lack of lubrication. Over time, the moving parts can become dry and start rubbing against each other, creating friction and noise. To resolve this, you can apply lubricating oil to the bearings or bushings of the blower motor. This will help reduce friction and minimize noise during operation.

Tightening screws:

Loose screws can also contribute to noisy blower wheels or motors. As the furnace operates, vibrations can cause screws to gradually loosen over time. By inspecting the blower assembly and tightening any loose screws, you can eliminate unnecessary rattling or clanking sounds.

Replacing damaged parts:

In some cases, damaged parts may be causing excessive noise in your furnace system. The blower wheel, for example, may have become bent or cracked due to wear and tear. If this is the case, replacing the damaged part with a new one can effectively eliminate the noise issue.

It’s important to note that while these solutions may work for minor noise issues, more complex repairs should always be handled by a professional HVAC technician. They have the expertise and knowledge to diagnose and fix any underlying problems with your furnace system.

Professional assistance is particularly crucial when dealing with electrical components like blower motors. Attempting repairs without proper training can lead to further damage or even pose safety risks. So if you’re unsure about how to address a noisy blower wheel or motor, it’s best to leave it in the hands of an experienced technician.

In addition to addressing specific issues with your blower wheel or motor, there are other steps you can take to maintain a quiet and efficient furnace system:

  • Regularly clean or replace the air filter to ensure proper airflow and prevent debris from causing noise.

  • Keep the blower compartment clean and free from dust or debris that may interfere with the fan’s operation.

  • Check the capacitor, a component that helps start the motor, for any signs of damage or malfunction. A faulty capacitor can contribute to noisy operation.

By following these maintenance tips and seeking professional help when needed, you can enjoy a quiet and efficient furnace system that keeps your home comfortable throughout the year.

Addressing Furnace Noise After Installation

We discussed common troubleshooting steps for specific types of noises, such as squealing, screeching, metallic scraping, and grinding sounds. We highlighted how electrical issues can contribute to problematic furnace noises. Finally, we provided solutions for blower wheel and blower motor noises.

If you are experiencing unusual furnace noise after installation, it is important to address the issue promptly to ensure optimal performance and longevity of your heating system. By understanding the potential causes and following the troubleshooting steps outlined in this blog post, you can identify and resolve many common noise-related problems yourself. However, if the issue persists or you are unsure about any aspect of your furnace’s operation, it is recommended to consult a professional HVAC technician for further assistance.

Frequently Asked Questions (FAQs)

Why is my new furnace making a loud banging noise?

A loud banging noise from a new furnace could indicate an issue with the ignition process or a delayed gas ignition. It is advisable to contact a qualified HVAC technician to inspect and resolve this problem.

Is it normal for my furnace to make clicking sounds?

Clicking sounds during startup or shutdown are typically normal as long as they are not excessively loud or accompanied by other unusual noises. If you have concerns about the clicking sounds coming from your furnace, consulting an HVAC professional can provide peace of mind.

What should I do if my furnace emits a burning smell?

If your new furnace emits a burning smell that lasts longer than a few hours during initial use or reoccurs frequently, it may indicate an issue with components like wiring or filters. It is recommended to turn off the unit immediately and seek assistance from a professional technician.

Why does my furnace make a high-pitched whistling noise?

A high-pitched whistling noise from your furnace could be caused by problems with the blower motor, air leaks in the ductwork, or issues with the air filter. It is advisable to have an HVAC technician inspect and address this issue.

Can I fix furnace noises myself or should I hire a professional?

While some furnace noise troubleshooting can be done by homeowners, it is generally recommended to consult a professional HVAC technician for accurate diagnosis and repairs. They have the expertise and tools necessary to safely resolve any issues and ensure optimal performance of your heating system.

Furnace Install

Top-rated furnace services in Portland

home heating service

hvac service contractor

hvac companies in