Top 10 Common HVAC Problems And How To Fix Them

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Gina Napsin
July 11, 2024
Heating & Cooling
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Welcome to the world of HVAC systems! These mechanical marvels are the unsung heroes of our modern lives, keeping us comfortable and breathing easy, day in and day out. But what happens when our trusty HVACs begin to falter? Cue the sweaty brows and shivers up our spines. The truth is our beloved HVACs can face a variety of common problems that can have a major impact on their performance and our overall comfort. From decreased efficiency to total system failure, these problems make our homes or workplaces unbearable. But fear not! In this article, we'll explore the top 10 common HVAC problems and provide you with the know-how to fix them. So sit back, relax, and let's get our HVAC systems back to their full, glorious functionality!

Lack of Maintenance

If you neglect to maintain your unit, it causes various issues. Gradually, dust and debris can gather in the system, resulting in blocked air filters and reduced airflow. This causes your unit to work harder than it should, leading to increased energy consumption and higher utility bills.
Additionally, a lack of maintenance causes your HVAC system to break down completely, leaving you without heat or air conditioning when you need it most. Regular maintenance appointments with a professional technician help prevent these issues by allowing them to identify and fix any potential problems before they become major issues.
Aside from professional maintenance appointments, homeowners can also do their part in keeping their HVAC systems running smoothly by cleaning or replacing air filters on a regular basis. This simple task can greatly impact system performance and energy efficiency. So, don't neglect your HVAC system's maintenance needs – it will save you money and headaches in the long run.

Dirty Filters

Dirty filters also have an adverse effect on your health. When air filters are clogged with dust, pet dander, pollen, and other airborne particles, it leads to poor indoor air quality. This causes respiratory problems, allergic reactions, and other health issues for you and your family. In addition, dirty filters can cause your unit to overheat, leading to costly HVAC repair service or a complete system breakdown.
To prevent dirty filters from becoming a problem, it's important to check them regularly and replace them as needed. The frequency of replacing the filter will be determined by various factors, such as the kind of filter, the number of people living in your house, and whether or not you have pets. It's also important to have your unit inspected and maintained regularly by a professional technician to ensure optimal performance and longevity.

Pilot or Ignition Problems

Pilot or ignition problems cause a lot of frustration for homeowners, especially during the colder months. If your HVAC system is not turning on, it could be due to a faulty ignition system. Various issues, such as a malfunctioning thermocouple or a dirty pilot light, could cause ignition problems. If you're unsure how to troubleshoot the problem, it's best to leave it to a professional HVAC technician. They know the HVAC hygiene best practices and guidelines, and have experience in promptly fixing any issues.
A dirty or clogged pilot light is one of the most common reasons for ignition problems. The pilot light can malfunction due to dirt, dust, and debris accumulation. In some cases, a simple cleaning may solve the issue. However, if the problem persists, a more serious issue could be at play, such as a faulty thermocouple or gas valve. A professional technician can properly diagnose the issue and provide a solution that gets your HVAC system up and running again.

Thermostat Malfunctions

Thermostat malfunctions lead to significant problems with your HVAC system, causing it to run excessively or not at all. If the thermostat is not working correctly, it can send the wrong signals to your HVAC system, leading to improper functioning. This increases energy consumption, higher bills, and reduces system efficiency. To avoid these issues, try replacing the batteries or checking the wiring if the issue persists. However, it's always best to contact a licensed technician to diagnose and fix the issue, as they have the expertise and tools to identify and repair the problem accurately. Proper thermostat maintenance is crucial to ensure optimal system performance and comfort in your home or office.

Mechanical Wear and Tear

Mechanical wear and tear is a common problem due to continuous usage and a lack of proper maintenance. The belts, bearings, and other mechanical components of your HVAC system can become loose, worn, or even break down over time. This results in unusual noises, decreased efficiency, and increased energy consumption. To prevent mechanical wear and tear, schedule regular maintenance appointments with the technician. During these appointments, the technician will inspect your system for indications of wear and tear and make necessary repairs or replacements to keep your system running smoothly. It's essential to address mechanical issues promptly, as ignoring them can lead to more extensive and expensive repairs down the line. Remember, a well-maintained HVAC system can last longer and operate more efficiently, saving you money on energy bills and repair costs in the long run.

Unusual Furnace Noises

Some furnace noises can indicate serious issues, such as a cracked heat exchanger, which can release dangerous gases into your home. That's why it's important to address any unusual noises as soon as possible to prevent further damage and ensure the safety of your household. A professional technician can pinpoint the source of the noise and provide the necessary HVAC services. So, if you hear any unusual noises from your furnace, don't hesitate to call the experts.

Blown Fuses or Tripped Breakers

Blown fuses or tripped breakers can cause your HVAC system to stop working altogether. If you notice that your system is not turning on, check your circuit breaker or fuse box. If you're experiencing issues frequently, call a professional to diagnose and fix the issue.

Dirty Condenser or Evaporator Coils

Condenser and evaporator coils play a critical role in your HVAC system's cooling process. The condenser coils release the heat from your home, while the evaporator coils absorb heat from your indoor air to cool it down. Over time, these coils can become covered in dirt, dust, and other debris, reducing their efficiency and increasing energy consumption. Regular cleaning and maintenance of these components can help ensure optimal system performance, energy efficiency, and a longer lifespan of your HVAC system. A professional HVAC technician can inspect and clean these coils as part of your regular maintenance appointments or if you notice reduced system performance or increased energy bills. Cleaning your coils can enhance the quality of your indoor air and decrease health risks linked to the growth of mold or other harmful substances.

Blower Runs Continuously

A blower that runs continuously can be a sign of several issues. It could be due to a faulty limit switch responsible for turning off the blower when the desired temperature is reached. Another potential issue could be a malfunctioning thermostat or a wiring problem. It's essential to address this issue promptly, as it can lead to increased energy consumption, higher utility bills, and decreased system efficiency.
Before calling a professional, make sure to check your thermostat settings to see if the fan is set to "on" rather than "auto." If it's set to "on," the blower will run continuously regardless of the temperature. If the problem persists, it's best to call a professional to diagnose and fix it before it leads to further damage.

Water Leaks

Water leaks can cause damage to your HVAC system and your home if left unchecked. They can also indicate more significant issues with your system, such as clogged drains or faulty condensation pumps. A clogged drain can cause water to back up and overflow, while a faulty condensation pump can lead to water accumulation and leaks. These issues can cause damage to your walls and floors and even lead to mold growth. It's essential to call in a professional to diagnose and fix the issue to prevent further damage and ensure your HVAC system is functioning properly. Regular maintenance appointments can help prevent these issues from occurring in the first place.

For the best help, call Home Alliance!

Having a functioning HVAC system is crucial for a comfortable living environment. It is important to seek professional services as needed to guarantee ideal performance and prevent frequent HVAC issues. Home Alliance is a business that provides top-notch HVAC services to homeowners. Their team of skilled technicians has the expertise and knowledge to diagnose and fix any HVAC issues efficiently and effectively. Plus, their affordable rates make it easy for homeowners to maintain their HVAC systems without breaking the bank. You can rely on the expertise of Home Alliance professionals to ensure that your HVAC system is well taken care of, giving you reassurance and peace of mind. Don't let common HVAC problems disrupt your comfort - contact Home Alliance and book a service today!