Why Does My Air Compressor Keep Tripping The Breaker? Here’s The Answer!

Air compressors are indispensable tools in various industrial and home applications. However, experiencing frequent breaker trips can be a frustrating and potentially hazardous issue. Understanding the underlying causes of these interruptions is crucial for ensuring the safe and efficient operation of your air compressor.

Overload

One of the primary reasons why an air compressor trips the breaker is overloading. When the compressor attempts to draw more current than the circuit breaker is rated for, the breaker will trip to protect the circuit from potential damage. Overloading can occur due to:

• Excessive air demand: Using tools or equipment that require more air than the compressor can supply can lead to overloading.
• Blockages in the air lines: Obstructions in the air lines, such as clogged filters or kinked hoses, can increase the resistance to airflow and cause the compressor to work harder, resulting in overloading.
• Faulty or worn-out components: Worn or damaged valves, pistons, or bearings can increase friction and put additional strain on the motor, triggering an overload.

Voltage Fluctuations

Air compressors are sensitive to voltage fluctuations. If the voltage supplied to the compressor varies significantly from the specified operating range, it can cause the compressor to draw excessive current and trip the breaker. Voltage fluctuations can be caused by:

• Power surges: Sudden increases in voltage can overload the compressor and trip the breaker.
• Brownouts: Voltage drops can cause the compressor to struggle to maintain proper operation, leading to overloading and breaker trips.
• Unstable power supply: In areas with unreliable power grids, voltage fluctuations can be common and may frequently trip the breaker.

Electrical Faults

Electrical faults within the air compressor or the wiring can also cause breaker trips. These faults can include:

• Ground faults: A ground fault occurs when current flows through an unintended path, such as a damaged wire touching the metal frame of the compressor. This can trip the breaker to prevent electrical shock.
• Short circuits: A short circuit occurs when current flows directly between two points in the circuit, bypassing the intended path. This can cause a sudden surge of current and trip the breaker.
• Loose connections: Loose or corroded electrical connections can create high resistance, causing the compressor to draw more current and potentially tripping the breaker.

Mechanical Problems

In some cases, mechanical problems with the air compressor can contribute to breaker trips. These problems can include:

• Excessive friction: Worn or misaligned components can increase friction, causing the compressor to work harder and draw more current.
• Damaged bearings: Worn or damaged bearings can create excessive friction and heat, leading to overloading and breaker trips.
• Seized pistons: If the pistons in the compressor seize, the motor will struggle to turn them, resulting in overloading and a tripped breaker.

How to Troubleshoot and Fix the Issue

To troubleshoot and fix the issue of your air compressor tripping the breaker, follow these steps:

• Check for overloads: Disconnect all tools and equipment from the compressor and restart it. If the breaker no longer trips, there is likely an overload issue.
• Inspect the air lines: Check for any blockages or kinks in the air lines. Clean or replace filters and ensure that the hoses are properly connected.
• Check the voltage: Use a voltmeter to measure the voltage at the compressor’s power outlet. If the voltage is significantly outside the operating range, contact your utility provider.
• Inspect electrical components: Check for any loose connections, damaged wires, or signs of arcing. If you find any electrical faults, contact a qualified electrician.
• Check for mechanical problems: Listen for any unusual noises or vibrations coming from the compressor. If you suspect a mechanical issue, consult a professional for further diagnosis and repair.

In a nutshell: Ensuring Uninterrupted Operation

Tripping breakers can be a nuisance, but understanding the underlying causes can help you resolve the issue and prevent recurrence. By addressing overloads, voltage fluctuations, electrical faults, and mechanical problems, you can ensure the safe and uninterrupted operation of your air compressor.

Frequently Asked Questions

Q: Can I reset the breaker myself?
A: Yes, but only if you are comfortable working with electricity and have identified the cause of the breaker trip. Resetting the breaker without addressing the underlying issue may lead to further problems.

Q: Is it safe to run an air compressor on a generator?
A: Yes, but the generator must be properly sized to handle the power requirements of the compressor. Using a generator that is too small can lead to overloading and breaker trips.

Q: How often should I service my air compressor?
A: The frequency of servicing depends on the type and usage of the compressor. Generally, it is recommended to have the compressor serviced every 2-3 months for home use and more frequently for industrial applications.