An air conditioner’s fan plays a crucial role in cooling your space. It moves air over the evaporator coils to cool it and then spreads it throughout your room. If the fan isn’t working, your AC can’t function well. Let’s look at some common reasons why this happens and how to fix them.
Power Supply Issues
Sometimes, the fan doesn’t work because there’s no power reaching the AC. This could be due to:
A tripped circuit breaker.
A blown fuse.
Faulty wiring.
Faulty Capacitor
The capacitor provides the boost of electricity needed to start the fan motor. If it’s damaged, the fan won’t start.
Burnt-Out Fan Motor
Over time, the fan motor can overheat or wear out. Signs include strange noises or the fan blades not moving.
Dirt and Debris Build-Up
Dust and debris can collect on the fan blades and motor, causing them to stop working. This happens often in outdoor units.
Faulty Thermostat
If the thermostat isn’t working, it might not signal the fan to turn on. Incorrect settings or a malfunction can cause this.
Frozen Evaporator Coils
When evaporator coils freeze, the fan may stop working to avoid damage. This usually happens because of restricted airflow or low refrigerant.
Worn-Out Belt (in Older Units)
Some older air conditioners use a belt to drive the fan. Over time, the belt can wear out or break, stopping the fan.
Preventive Tips to Keep Your AC Fan Running
Follow these tips to keep your AC fan in good condition:
- Schedule regular maintenance for your air conditioner.
- Keep the unit clean and free from dirt and debris.
- Check and replace air filters every 1-3 months.
- Ensure the thermostat works correctly.
- Avoid overworking your AC by setting a reasonable temperature.
