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5 Signs It’s Time for Replacing AC Blower Motor

ac blower motor

Is your AC not functioning the way it used to? Are you experiencing decreased airflow or unusual noises while it’s running? It might be time for a replacement of your AC blower motor.

The blower motor is responsible for circulating cool air throughout your home, and if it’s not functioning correctly, then you will likely experience a decrease in the efficiency of your AC unit. Here, we will discuss five signs that indicate it’s time to replace your blower motor and provide tips on choosing the right one for your needs.

Decreased Airflow or No Airflow

If you’ve noticed that the airflow from your AC vents is weak or nonexistent, it may be a sign that your blower motor needs to be replaced. Inefficient airflow can result in rooms not getting cooled properly and your HVAC unit struggling to distribute air effectively.

An old or faulty blower motor may not be pushing enough hot or cold air through the leaky ducts, making it difficult for your AC unit to maintain a comfortable temperature. Replacing the blower motor can improve airflow, ensure efficient cooling, and prevent further issues with your HVAC system.

Unusual or Loud Noises

If you’re hearing unusual or loud noises coming from your AC unit, it may be a sign that the blower motor needs replacing. Grinding or squealing noises from the blower motor could indicate a problem. Rattling or loud banging sounds during operation, along with unusual vibrations, are also red flags.

Another indication is if the blower fan is hitting something inside the unit. Screeching or humming sounds could be coming from the blower motor as well. Don’t ignore these signs, as they could lead to further damage if left unaddressed.


When your blower motor in the air handler is constantly overheating, it’s a clear indication that it needs to be replaced. Overheating can occur due to various reasons, including worn-out bearings, faulty wiring, or a buildup of dirt and debris in the cabin air filter.

An overheating blower motor can cause your AC unit to shut down unexpectedly or fail to cool your home adequately. It puts stress on the entire system and can lead to more significant issues if not addressed promptly. By replacing the blower motor, you’ll ensure proper cooling and prevent potential damage to your HVAC system.

Increased Energy Bills

increase bills

Did you notice a sudden spike in your energy bill? If so, a faulty blower motor could be to blame. When the blower motor is not functioning efficiently, your HVAC system has to work harder to distribute cool air.

This increased workload translates into higher energy consumption, resulting in higher utility bills. Not only will replacing the blower motor help improve energy efficiency, but it will also save you money in the long run by reducing your monthly utility costs.

Motor Doesn’t Start

When the AC unit is turned on, you may encounter a situation where the blower motor fails to start, even though all screws holding it in place are secure. This can be indicated by a humming sound coming from the motor, but no spinning motion.

Despite the AC system being powered on, the fan associated with the blower motor might not be running. One possible reason for this issue could be a faulty capacitor, preventing the motor from starting.

Regardless of the cause, a blower motor that doesn’t start can lead to poor air circulation and discomfort in your home. It’s important to address this issue promptly by replacing the faulty blower motor. By doing so, you’ll ensure that your air conditioner operates smoothly and effectively, providing you with the comfort you deserve.

Tips for Choosing the Right Blower Motor

right blower motor

So, you’ve decided to replace your AC or furnace blower motor. Choosing the right one is crucial to ensure optimal performance and longevity of your HVAC system. Here are a few tips to help you make the right choice:

Consider the power requirements of your AC unit.

When replacing your blower motor, it’s important to consider the power requirements of your AC unit. Start by determining the horsepower and voltage specifications of your AC unit. Depending on your settings, this information is crucial to help you select a blower motor that matches the power requirements of your unit.

It’s crucial to ensure that the new motor can provide sufficient airflow for your cooling needs. Consulting the AC unit’s manufacturer or an HVAC technician can help you determine the appropriate power specifications for your replacement motor.

Check for compatibility between your AC unit and blower motor.

Before replacing your HVAC blower motor, it’s important to check for compatibility between your AC unit and the new motor. Let a professional inspect your AC unit and provide guidance on whether the new blower motor will be a suitable match for your system.

Your AC unit may have specific requirements or limitations that need to be considered when selecting a replacement motor. Most AC units are designed to work with specific types of blower motors, so it’s essential to ensure compatibility.

Consider the noise level of the blower motor.

When choosing a blower motor for your AC, it’s important to consider the noise level. Take into account whether noise is a concern for you or your household. Research the noise ratings and reviews for different blower motors to find one that operates quietly.

Look for blower motors specifically designed for quiet operation. Additionally, consider blower motors with variable-speed options, as they can help reduce noise.

Check for warranty coverage.

When considering replacing your air conditioner blower motor, it’s important to check for warranty coverage. Start by reviewing the warranty information provided by the blower motor manufacturer. Verify the length and coverage of the warranty, and pay attention to any specific conditions or limitations outlined.

For added protection and peace of mind, you may also want to consider purchasing extended warranty coverage. By doing so, you can ensure that you are covered in case of any issues with your new blower motor.

Book a Consultation with Our Experts Today!

Ready to book a consultation with our HVAC professionals in Shingle Springs, CA? Don’t hesitate! Our experts at Good Guys Heating and Cooling are here to diagnose any blower motor issues you may be experiencing.

They will carefully assess the condition of your AC blower motor and provide personalized recommendations based on their findings. Schedule a consultation today to determine if a blower motor replacement is necessary for your system.