Your air conditioner depends on several important components to keep your home cool, and one of the most essential is the blower motor. The blower motor is responsible for pushing cooled air through your ductwork and into the rooms of your home. When the blower motor starts to fail, your comfort, airflow, and energy efficiency can all suffer. Because blower motor problems often develop gradually, LV Heating & Cooling will highlight the early warning signs that can help you avoid a complete system breakdown and costly emergency repairs.
What Does a Blower Motor Do?
The blower motor is located inside the indoor air handler or furnace portion of your HVAC system. Its job is to power the fan that circulates conditioned air throughout your home. Without a properly functioning blower motor cool air cannot move through the vents efficiently. Your home may feel warm or unevenly cooled. Your air conditioner system may overheat or shut down. The blower motor plays a major role in both comfort and indoor air circulation.
Weak Airflow from Vents
One of the most noticeable signs of blower motor trouble is weak airflow coming from your vents. You may notice certain rooms feel warmer than others. There may also be reduced airflow throughout the home, air barely coming from vents or longer cooling cycles. A weakening blower motor may struggle to maintain proper airflow, especially during hot weather when your system is working harder.
Strange Noises Coming from the Indoor AC Unit
Blower motors can begin making unusual sounds as components wear down or become damaged. Common noises include:
• Squealing/Grinding: Loose Parts
• Rattling: Loose Parts
• Banging: Debris Inside the Blower
• Buzzing: Motor Failure
Ignoring unusual noises can allow the damage to worsen over time.
Air Conditioner Runs but Little Air Comes Out
If your air conditioner appears to be running normally but little or no air is flowing through the vents, the blower motor could be failing completely. Common symptoms are that the outdoor unit is running, but there is little to no indoor airflow or warm indoor temperatures. This often indicates the blower motor is no longer able to spin the fan properly.
Overheating AC System
Blower motors help move air across the evaporator coil and throughout the HVAC system. If airflow becomes restricted, the system can overheat. When the system shuts off unexpectedly, burning smell near vents, frequent cycling or warm air instead of cool air the motor is overheating. Overheating can also place stress on other HVAC components.
Blower Fan Runs Constantly
Sometimes a failing blower motor or faulty control board may cause the fan to run continuously even when the cooling cycle ends. You may notice your fan never shuts off, there is constant airflow from vents, higher utility bills or uneven temperatures. When the air conditioner runs constantly it can increase wear and shorten the lifespan of the motor.
Frozen Evaporator Coil
Poor airflow caused by a failing blower motor can sometimes lead to a frozen evaporator coil. When the coils are frozen you will see ice buildup on refrigerant lines. Along with warm air from vents, water leaks around the indoor unit and poor cooling performance. When airflow is insufficient, the evaporator coil can become too cold and freeze over.
Air Conditioning Inspections, Tune Ups, Repair, Replacement & More in Summerlin, North LV, Henderson, Enterprise, Paradise, Spring Valley, Sunrise Manor & Greater Las Vegas, NV
Your air conditioner’s blower motor is responsible for delivering cool, comfortable air throughout your home. Recognizing the warning signs early and scheduling professional HVAC service can help protect your system. For HVAC repairs and more, contact LV Heating & Cooling today.
