To make your central air conditioner work, there are dozens of components working in harmony. With the working parts functioning continuously, they eventually wear. Some of these repairs can be avoided or stopped with the help of a professional maintenance. One of the parts are the central air conditioner fans and today, we at Air Supply Heating and Air Conditioning would like to share the basics on central air conditioner fans. The central air conditioner has 2 fans; one fan is located in the inside unit that blows cool air for your home and the other is located in the outside unit that blows over condenser coils in order to release heat from your home. The home cannot be cooled efficiently if either of these fans are not operating accordingly. Below are a few examples as to why the fan may not be working.
No Power to AC Unit
An air conditioner fan problem can be due to a faulty fan’s assembly which manifests with power loss issues. If the various parts of your air conditioner can overheat and trip your circuit breaker, the air conditioner can be forced to shut down. If it continually occurs, you should have a professional inspect the unit as to the underlying cause as you can flip the switch at your circuit breaker back on.
Bad AC Capacitors
The capacitor stores up energy that is used to provide power to your air conditioner’s fans. For quite a few reasons, it will then force one of your system’s fans to stop spinning when your capacitor can go bad and stop working properly. Usually, a bad capacitor will need a professional replacement.
Failing AC Contactor
An air conditioner’s contactor is a switch in which electricity flows in and out to control the compressor as well as the condenser fan motor. It is common for the contactor to wear down over, restricting the outside unit’s fan from functioning properly. A professional HVAC contractor can get the contractor replaced safely and easily.
Burnt Out Electric AC Motor
Especially being prone to wear and tear, fans can burn out when they undergo too much stress. When the air conditioning unit is not properly maintained, they are even more vulnerable to excessive wear. A bad fan motor is a more serious issue that will either require professional repairs or a system replacement, depending on the age and condition of your system.
Loose or Broken AC Belt
The fan to stop spinning properly in older systems with belt-powered fan from the belt can get loose or break. Since you likely have an older, less efficient unit where this issue can be repaired, it can also be an indication that a new air conditioning unit is in order.
Clogged Air Filter
If your air filter is severely clogged and your indoor fan is working properly, the air that it blows will be completely blocked. Particularly if it sounds like your fan is working but you don’t feel any air in your home, check your air filter and replace it if it’s dirty.