An air conditioner has a capacitor for storing electrical energy, which helps run the AC unit when turned on. A failing capacitor is a common reason homeowners need air conditioning repair. What could be causing your capacitor to fail, and how does it affect your system?

Why Your Capacitor Is Failing

A capacitor is among the most important elements of your air conditioner. Here are possible reasons that contribute to your capacitor failing.

AC unit Isn't Blowing Cold Air

One of the first indications that the capacitor in your air conditioner is damaged is if it isn't blowing cold air into your house. So, try restarting your air conditioner system. If the issue still exists, have a technician analyze the air conditioner to see if the capacitor is the issue.

It Is Overheating

An air conditioner's capacitor has a moist separator that dries out when the AC unit gets too hot. Therefore, high temperatures can dry the moist separator, causing an internal short circuit. Sometimes, overheating can be due to exposure to heat from the sun or when the AC unit works excessively for an extended period. That is why it is recommended to install an air conditioner away from direct sunlight. 

End of Life Expectancy

Like anything else manufactured, a capacitor has a life span, after which it may become obsolete, ineffective, or fail to work. Besides, the everyday wear and tear could be excessive depending on how often you use your air conditioner and the climate in your region.

How to Tell Your Capacitor Is Failing

There are simple ways to know if the problem with your AC system is due to a failing capacitor. The first sign is hard starting. If your AC unit cannot start, or if it stutters when you try to start it and shuts down after a while, the capacitor could be damaged. 

The second sign is if your AC system has motor problems. Since the capacitor in your AC unit is connected to the motor, challenges with the motor could point out a failing capacitor. When the motor turns on and shuts down almost immediately, it could be due to a failing capacitor. Lastly, noises from your air conditioner could indicate a worn-out capacitor. The noises will be more like clicking sounds.

It is best to call AC contractors if you are experiencing problems with your AC system. They can diagnose the problem and conduct the required air conditioning repairs.