

Once you have ensured the system is turned off, go outside to the outdoor unit. A broken or damage fan blade can be dangerous if the system turns on while you are inspecting it. To troubleshoot, turn off the system at the thermostat as a safety precaution. If your system is running but you hear unusual noise coming from the outdoor unit, you might have a bad fan or a bent or broken fan blade. If this is the case, simply cleaning or replacing the air filter should solve the problem.įor more information on changing the system’s air filter, and how often to do it, take a look at our air conditioner maintenance page. In extreme cases, restricted airflow can cause the entire system to shut down. If it’s not cleaned or replaced regularly, a clogged air filter can restrict air flow to the point that it feels like the indoor fan is not properly circulating air. Your system’s air filter traps dust, dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner. Air Filter is BlockedĪnother common and easily remedied situation that sometimes results in a central air conditioner fan not working is a dirty, clogged air filter.
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If the system continues to trip the circuit breaker, shut it down and call a professional HVAC technician. If the issue is a tripped circuit breaker, keep in mind that it could have been caused by a power surge of some kind, possibly weather related. If a fuse in this box is blown, that means it’s time to call your Carrier dealer for professional assistance. Make sure it is in the “on” position as well. It is usually located in a separate box, usually mounted on the home near the outdoor unit. If that’s not the issue, step outside and check the power disconnect for the outdoor unit. If that isn’t the issue, there is a power switch typically located on the air handler unit (furnace or fan coil) inside your home that looks similar to a light switch. The outdoor unit typically takes 220v power to operate and should be on its own circuit. First, locate your main breaker box panel and make sure the AC system circuit breaker hasn’t been tripped. Your AC system runs on electricity, and there are typically three locations you can check to be sure the issue isn’t with power to the system. If you are satisfied that the thermostat settings are correct, check your power supply. If you have a programmable thermostat, check to be sure your comfort schedule is properly set for cooling at the time you are having the issue, and make adjustments if necessary. According the Department of Energy, 78⁰F is a good setting for both comfort and energy efficiency when you are home. Switch it back to either cooling or auto mode (automatically switches between heating and cooling), and check that an appropriate cooling temperature is selected. If the system is on, but set for heating instead of cooling, the system likely won’t operate. Your central air conditioner is a complex system with many components, and there are several issues that could be the reason your AC fan is not working.

Reasons the Central Air Conditioner Fan Is Not Workingīefore you just assume it’s a bad fan, spend a few minutes determining whether other issues within your air conditioning system may be causing the problem. If either of these fans quits operating, be sure to get the issue resolved to help prevent more serious – and expensive – issues down the road for your cooling system. It is responsible for pulling air through the outdoor condenser coils to help remove heat from your home. The outdoor fan, also called the condenser fan, is found in the outdoor unit.

It is responsible for blowing cold air out to your living areas, and pulling return air back into the system to be cooled by the evaporator coil. The indoor fan, or “blower” as it is often called, is housed inside your furnace or air handler unit. Assuming you have a standard split-system central air conditioner, there are actually two main fans – one inside your home and one outside. But before you totally lose your cool, take a few minutes to troubleshoot and see if it’s a problem you can fix or if it’s time to call your local Carrier HVAC expert for professional air conditioner service.įirst, you’ll need to know where to look. That’s why it’s so upsetting to crank up your AC only to find the air conditioner fan not working, and the temperature in your home rising. it’s a wonderful thing in the heat of summer when you can go inside and feel the relief from a hot, sticky summer day.
