The AC condenser is the component that converts the refrigerant from a gas to liquid so that it can move through the AC system. As the condenser basically act as a heat exchanger for the AC system, a great volume of heat is expelled from it during the conversion from gas to liquid. If the condenser gets too hot, it will not be able to convert the refrigerant into cooled liquid form required to generate cold air.the AC condenser fan is thus designed to keep the condenser cool so that it can continue to efficiently convert the gas into liquid, and keep the AC system working correctly. A bad fan can cause issues with the entire AC system. Usually the vehicle will display a few signs when the condenser has gone south:
1. LUKEWARM AIR
One of the first signs that a fan has failed is the air issuing from the vent being warm. This problem happens when the condenser has gotten too hot and is no longer able to convert the refrigerant into cooled liquid form. As the fan is made to prevent the condenser from ever getting this hot, warm air from the vents is one of the first signs that the fan may not be cooling the condenser.
2. VEHICLE OVERHEATING IN IDLE
Another sign that may present itself when the fan has failed is the vehicle overheating overheating when the engine is idling with the AC on. During the conversion process, the AC condenser is able to create a considerable amount of heat, which can affect the overall engine temperature enough to cause overheating. Usually, the overheating will stop once the vehicle is moving due to the increased airflow and cooling the condenser receives when the car is in motion.
3. BURNING SMELL WHEN THE AC IS ON
Another more major symptom that the condenser fan has failed is the vehicle beginning to emit a burning odor. When the condenser overheats, all of the parts of the AC system will start to overheat until they eventually get hot enough to burn and emit an odor. The longer the components are overheated the more damage is done. So if a burning smell is noticed when the AC is turned on, make sure to have the system checked as soon as possible.
Because the condenser fan cools such an important part of the AC system it is very important to pay attention to its workings if you find that your Ac is not functioning. A failed fan will not only fail to produce cold air, but can even result in damage to the AC system because of overheating. If you suspect that you are having an issue with the condenser fan, make sure to have the vehicle checked by a professional technician.