Why Does My Air Compressor Keep Blowing Fuses?

An air compressor is an indispensable tool for many homeowners and professionals alike. Whether you need to inflate car tires, power pneumatic tools, or spray paint, an air compressor is the go-to device that can handle all these tasks efficiently. However, if your air compressor keeps blowing fuses, it can become frustrating and even dangerous.

In this post, we will explore the reasons why your air compressor might blow fuses, what you can do to fix it, and how to prevent it from happening in the future.

1. Overloading

One of the most common reasons why air compressors blow fuses is because they are overloaded. Most air compressors have a specific voltage and wattage limit, which if exceeded, can cause the device to trip a fuse. To prevent overloading, make sure that you use the right circuit and voltage for your compressor. Check the user manual to find out the specific voltage and wattage requirements for your device. Additionally, avoid using long or undersized extension cords, which can cause voltage fluctuations that can damage the compressor’s motor.

2. Faulty Capacitors

Capacitors are essential components in air compressors, as they provide the power needed to start the motor. If a capacitor is faulty, it can cause the motor to draw too much current, leading to blown fuses. Capacitors can fail due to age, wear and tear, or exposure to extreme temperatures. To fix this issue, you will need to replace the faulty capacitor with a new one. Consult a professional if you are not sure how to do this.

3. Short Circuits

A short circuit in an air compressor can also cause the device to blow fuses. A short circuit occurs when the wiring or components inside the compressor touch each other, causing a surge of electrical current. This can happen due to faulty wiring or damaged components. To prevent short circuits, avoid exposing your air compressor to moisture, dirt, or debris that can cause damage.

4. Overheating

Like all motors, air compressors generate heat when in use. However, if your compressor starts to overheat, it can cause the device to trip a fuse. Overheating can happen due to a buildup of dust and debris inside the compressor, failing fans, or inadequate cooling systems. To prevent overheating, regularly clean and maintain your compressor, replace faulty fans, or add additional cooling systems if needed.

5. Worn Out Pressure Switch

The pressure switch is the component that controls the pressure in your air compressor tank. If the pressure switch is faulty or worn out, it can cause the device to blow fuses. The pressure switch can become worn out due to age, frequent use, or exposure to extreme temperatures. To fix this issue, you will need to replace the pressure switch with a new one.


Blown fuses are a common issue with air compressors, but they can be fixed by identifying and addressing the root cause. By following the prevention and maintenance tips discussed in this blog post, you can keep your air compressor in optimal condition and prevent it from tripping fuses. However, remember that some repairs should only be done by a professional, so don’t hesitate to seek help if you are not sure what to do. Finally, always prioritize your safety when handling electrical appliances, including air compressors.

Ronald Cantrell

My name is Ronald and I'm a passionate home tools blogger who loves to help people find the perfect tools for their homes. I'm constantly on the lookout for the latest and greatest products so people can make informed decisions when it comes to their DIY projects. In my spare time, I like to tinker around with projects of my own and put my knowledge of tools to the test.

Click Here to Leave a Comment Below 0 comments