The average lifespan of an AC fan motor is about 12 years. An AC fan motor can last more than 12 years if it’s kept clean and cooled as needed.
How do I know if my AC fan motor is bad?
7 Signs and Symptoms of a Bad AC Fan Motor
- AC Fan Doesn’t Start. Even though you have the AC turned on, the fan does not start.
- AC Fan Doesn’t Stop. …
- Slow Rotating Blades. …
- Outside Fan Blades Are Still. …
- Rattling, Humming and Buzzing Noises. …
- AC Runs Intermittently. …
- No Cold Airflow.
When should I replace my AC fan motor?
Signs that your fan is having issues include the following:
The fan won’t start even though the AC is on. The fan won’t stop, even when you shut the AC off. The fan turns on, yet the blades are rotating very slowly. There’s a rattling noise coming from the condenser unit when the fan is turned on.
How much does it cost to replace an AC fan motor?
When your air conditioner’s fan motor breaks, it will typically cost about $300 to $600 to replace. It’s imperative to get this fixed quickly, since without a working fan motor your air conditioner’s compressor can be the next domino to tumble. Its repair is even more significant — usually running closer to $2,000.
What causes AC fan motor to burn up?
Not having the fan blades installed in a correct position can result in a lack of airflow and cause the motor to overheat. Lack of maintenance. If the motor has not been lubricated, or the unit kept clean, this can lead to overheating problems.
What to do if AC fan is not working?
Turn off the AC from the thermostat and the circuit breaker. Check the fan for any debris or components it is contacting while spinning. Using your kick-start stick to manually spin the fan makes this easier. If you notice any debris, clear it out, turn everything back on, and listen to it again while it’s running.
Why is my outside AC fan not spinning?
One of the most common reasons fans stop spinning is because of a dead capacitor. The AC’s capacitors are small, cylinder components that send energy signals to power the fan motor and the rest of the AC unit. … Capacitors can go bad over time and need to be replaced.
What does a bad AC fan motor sound like?
There’s a rattling or buzzing noise coming from the condenser unit when the fan is turned on. … If you hear a loud rattling noise, it could be a minor issue like loose stones or debris that’s caught in the condensing unit.
What happens when condenser fan fails?
When the condenser overheats, all of the components of the AC system will begin to overheat until they eventually get hot enough to burn and emit an odor. … A failed fan will not only fail to produce cold air, but can even result in damage to the AC system due to overheating.
Why is my AC fan making noise?
Fans that produce a rattling or harsh humming noise may be loose or need cleaning. Open the air conditioner cabinet and locate the fan. Remove any debris you see on or around the blades. In some cases insulation or other items may fall into the unit and be noisy due to the movement of the blades.
Why is my AC running but not blowing air?
The most common problems that cause a lack of airflow include frozen coils, broken fan and restricted airflow due to dirty air filters or vent obstruction. However, there are many other issues that can lead to minimal airflow, so it may be necessary to ask the professionals.