The condenser fan found inside the outdoor unit plays a critically important role in your air conditioner’s performance. The fan’s motor powers the spinning blades that create cooling air movement across the condenser coil, which aids in heat transfer. Caring for the HVAC condenser fan motor not only helps keep your Dayton home comfortable, it also keeps essential outdoor A/C components safe from harm.
Overheating is a Fan Motor Issue to Avoid
Condenser fans are built to work reliably up to a maximum temperature – usually 150 degrees. If it gets too hot and the fan blades stop spinning, HVAC components such as the compressor can be damaged or even ruined due to overheating.
Issues with the fan motor produce some easy-to-recognize signs:
- An increase in the temperature of the air being delivered to the registers
- A cabinet surface that feels hot instead of warm when touched
- An unusual buzzing or humming noise originating in the cabinet
- The odor of scorched wiring coming from the outdoor unit
Reasons Why a Condenser Fan Might Fail
There are several common issues that can cause a fan motor to overheat and fail:
- Worn out or defective motor. Motors can wear out due to age, or be defective and fail prematurely.
- Malfunctioning capacitor. If the capacitor isn’t working properly, the fan speed can drop, or it might not spin at all.
- Electrical issues. A faulty circuit board or fried wiring can make the fan start and stop repeatedly, or simply quit working.
- Insufficient airflow. Overgrown vegetation or accumulated yard debris can stifle essential airflow through the outdoor unit, leading to overheating.
- Built up dirt and debris on/around the fan or friction from a lack of proper lubrication can make the motor overheat and fail.
Taking care of your condenser fan with regular professional maintenance can help you avoid motor problems or sudden failures. When performing maintenance, a technician will inspect the various electrical components, then thoroughly clean and lubricate the motor so it stays working reliably.
To schedule A/C maintenance that includes HVAC condenser fan motor care, contact us at Detmer and Sons.