Tips For Maintaining Your Condenser Fan Motor

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A home’s HVAC condenser fan motor is one of its most vital components. When an AC system is on the fritz, the culprit is usually an overheating fan motor. Regularly caring for this part can help mitigate potential issues and keep your home’s indoor temperature comfortable all year round.

Extend the life of your HVAC system with this helpful guide to properly caring for your condenser fan motor, courtesy of Bloomington Heating & Air.

Contact our experienced HVAC contractors today to request air conditioning service!

What Does An HVAC’s Condenser Fan Motor Do?

The HVAC system’s condenser fan motor, compressor coil, and condenser coil are all located in the outdoor condensing unit. This unit is responsible for keeping the AC unit cool while it’s running. The condensing unit’s motor is crucial to the cooling process, as it’s what turns the fans that blow air across the condenser coil. When air blows across the condenser coil, it cools the refrigerant, transforming it from a hot gas into a liquid. If the motor itself overheats, it will stop working, and the HVAC system will have no way to cool itself, eventually causing the system to fail.

Common Causes Of An Overheating Condenser Fan Motor 

There are a few possible issues that can cause a condenser fan motor to overheat. The most common causes include: 

  • Worn Out Motor. Old motors may eventually give out after excessive use or lack of maintenance. 
  • Faulty Capacitor. A defective or malfunctioning capacitor can cause a motor to spin too slowly or stop it from turning altogether.
  • Debris In Outdoor Unit. Overgrown vegetation surrounding the condensing unit, or debris that’s fallen inside it, can restrict airflow between the fans and condenser coils. 
  • Electrical Problems.  Damaged wiring or inadequate circuits may cause a motor to stop operating altogether.
  • Neglected Maintenance. Without regular maintenance performed by a professional, the condenser fan’s motor will wear out faster. 

Telltale Signs Of Overheating

Condenser fan motors overheat when they reach a temperature of roughly 150 degrees Fahrenheit. Upon overheating, the motor will stop running, halting the HVAC system and potentially damaging other vital components. The following are a few signs that your condenser fan motor may be overheating:

  • The top of the outdoor unit is hot to the touch. 
  • A buzzing or humming sound can be heard coming from the outdoor unit.
  • A strong odor emanating from the outdoor unit. 
  • The AC system runs but is no longer distributing cold air.
  • The AC system suddenly cuts out. 

If your HVAC system displays any overheated motor signs, contact the professionals at our AC repair company immediately.

How To Prevent Overheating

The best way to care for your AC’s condenser fan motor is by having our HVAC technicians perform regularly scheduled preventative maintenance. Our knowledgeable technicians prevent issues from arising down the road by clearing the outdoor unit of debris, lubricating the motor to mitigate wear-and-tear caused by friction, and inspecting components for signs of damage. Extend your equipment’s life, lower utility bills, and keep your home cool and comfortable year-round by signing up for HVAC preventative maintenance!

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