Your air conditioner works hard to keep your home cool and comfortable, especially during the peak of summer. One of the most important parts of the system is the blower motor, which is responsible for pushing cooled air through your ductwork and out into the rooms of your home. If the blower motor begins to fail, your air conditioner system will struggle to deliver consistent comfort and ignoring the warning signs can lead to more costly repairs. Absolute P&M Services would like to cover the most common signs of a failing air conditioner blower motor, what causes it, and what you should do if yours starts to act up.
What Does the AC Blower Motor Do?
The blower motor is located in the indoor unit of your HVAC system. Its job is to:
• Circulate air over the evaporator coils to cool it
• Push the cooled air through the duct system and into your living space
• Maintain proper airflow to ensure consistent temperature control
If the blower motor isn’t working correctly, you will quickly notice issues with airflow and comfort.
Signs Your AC Blower Motor May Be Failing
Weak or No Airflow from Vents: One of the most noticeable symptoms of a failing blower motor is weak airflow or no airflow at all coming from your vents. If the motor is failing or has burned out, it won’t be able to push air through the ducts effectively.
Unusual Noises: Hearing squealing, grinding, or banging sounds coming from the air handler could indicate problems with the motor bearings, fan blades, or motor mount. If the noise is sudden or getting worse, turn off the system and call a professional to avoid further damage.
Overheating and System Shut-Offs: A blower motor that is failing may overheat due to electrical issues or restricted airflow. Many modern HVAC systems have built-in safety features that shut off the system to prevent further damage when overheating is detected.
High Energy Bills: As the blower motor weakens, it becomes less efficient and works harder to maintain airflow. This can lead to longer run times and higher utility bills, even if you have not adjusted your thermostat.
Burning or Electrical Odors: A strong burning smell or an odor similar to hot plastic or metal coming from your vents may indicate the blower motor is overheating or the wiring is melting. This is a serious issue. Turn off your system immediately and call a licensed HVAC technician.
Inconsistent Temperatures: Rooms that feel unevenly cooled or warm spots throughout the house can be a result of a blower motor that isn’t operating at full power, leading to poor air distribution.
What Causes an AC Blower Motor to Fail
Some common reasons blower motors fail include:
• Old age and wear and tear
• Dirty air filters that restrict airflow
• Dust and debris buildup on motor parts
• Overworked system due to poor maintenance
• Electrical issues, such as a bad capacitor or faulty wiring
In some cases, minor issues like a blown capacitor or dirty motor can be repaired. If the motor itself is worn out or burned out, it may need to be replaced. Your HVAC technician can diagnose the issue and help you determine the most cost-effective solution.
Central Air Conditioning Maintenance, Repairs, Replacement & More in Santa Fe, Tomball, Sugar Land, Galveston, Austin & Greater Houston, Texas
If your air conditioner is showing signs of blower motor failure, do not wait until it breaks down completely. Contact Absolute P&M Services today to schedule an inspection and keep your home cool and comfortable all season long!
