Central Air Fan Not Blowing

5 common reasons why your central air conditioner fan is not working.

Central air fan not blowing.

This is the most common reason for a central ac not blowing cold air. Your system s air filter traps dust dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner. Believe it or not something as simple as a dirty filter could be what s causing your air conditioner not to blow hard. Check your air filter.

The blower motor starts. If it s dirty replace it. Maybe you notice that there is warm air blowing through your vents despite the fact that you are good about changing your ac filters and you ve never had any type of problem like this. Fans in the central a c both pull air out of the room to be conditioned and have humidity removed and also push chilled air through the vents throughout the house.

Another common and easily remedied situation that sometimes results in a central air conditioner fan not working is a dirty clogged air filter. It s the last thing you want on a sweltering summer s day a central air conditioning system that s not blowing cold air. When the home s thermostat detects that the living space is warmer than its programmed temperature level a cooling cycle begins. So you do some investigating and realize that even though the outside unit is buzzing the fan isn t spinning.

Here are some reasons why this could happen. Air conditioner outside unit fan not working. When your air filter has dirt buildup on it the cold air won t be able to flow through. Split system central air conditioners used with forced air furnaces take hot air from the house and blow it through an evaporator coil located in the top of the furnace to cool the air.

Turn the air conditioner back on and check for increased airflow. Without getting too detailed a dirty air filter makes it hard for air to enter into your ac system which means you ll be feeling low airflow. The cooled air circulates throughout the house via the heat ducts then returns to the furnace as warm air to be cooled again. Hence your room will not be optimally chilled.

Find the blower motor and check for excessive dirt or dust. If this did not improve the flow you d need to contact a professional. One of them is that your central ac may stop blowing cold air. Turn off the air conditioner.

While each component in a central air conditioner is critical quite simply the unit will not work if the fan is not running. However your capacitor can go bad for various reasons and stop working properly which will force one of your system s fans to stop spinning. You can clean this with a rag however be careful not to get your fingers caught.