What Are The Symptoms Of A Failing Run Capacitor?

When it comes to the proper functioning of your HVAC system, the run capacitor plays a crucial role. It serves as the power source that keeps the motor running smoothly. However, just like any other component, the run capacitor can fail over time. In this article, we will take a closer look at the symptoms of a failing run capacitor.

What is a Run Capacitor?

Before we dive into the symptoms of a failing run capacitor, let’s first understand what it is. A run capacitor is an electrical component found in HVAC systems that provides the necessary power to keep the motor running. It works by storing energy and releasing it as needed to keep the motor running smoothly. Without a run capacitor, the motor would not be able to start and run properly.

Symptoms of a Failing Run Capacitor

Now that we know what a run capacitor is, let’s take a look at the symptoms of a failing one:

1. HVAC System Won’t Start

If the run capacitor fails completely, the HVAC system will not start at all. This is because the capacitor is responsible for providing the necessary power to start the motor. If the capacitor is not providing enough power, the motor will not be able to start.

2. HVAC System Shuts Off

If the run capacitor is failing, the HVAC system may start but then shut off shortly after. This is because the capacitor is not able to provide enough power to keep the motor running. As a result, the motor will shut off and the HVAC system will stop working.

3. HVAC System is Noisy

If the run capacitor is failing, the motor may start to make unusual noises. This is because the capacitor is not providing enough power to keep the motor running smoothly. As a result, the motor may start to vibrate or make a humming noise.

4. HVAC System Runs Constantly

If the run capacitor is failing, the HVAC system may run constantly without ever shutting off. This is because the capacitor is not able to provide enough power to keep the motor running properly. As a result, the motor may continue to run even when it doesn’t need to.

5. HVAC System is Not Cooling or Heating Properly

If the run capacitor is failing, the HVAC system may not be able to cool or heat properly. This is because the capacitor is not providing enough power to keep the motor running at the necessary speed. As a result, the HVAC system may not be able to maintain the desired temperature.

Conclusion

A failing run capacitor can cause a variety of problems with your HVAC system. If you notice any of the symptoms listed above, it may be time to have your run capacitor checked and replaced if necessary. It’s important to address any issues with your HVAC system as soon as possible to prevent further damage and ensure proper functioning.