Atlas Copco Air Compressor Troubleshooting Problems, Possible Causes & Solutions

Atlas Copco air compressors are a worldwide operating company, that provides a broad range of air compressor technology to users around the globe. One thing with Atlas Copco air compressors, like any compressor, they will require troubleshooting in order to diagnose & fix a problem.

This article will provide examples of troubleshooting tips, including the problems, possible causes, and solutions, for an Atlas Copco air compressor taken from an operator’s manual.

Table of Contents

• Atlas Copco Air Compressor Troubleshooting
  • Atlas Copco Air Compressor Doesn’t Unload
  • Atlas Copco Air Compressor Pressure Output Too Low
  • Atlas Copco Air Compressor Safety Valve Blows After Loading
  • Atlas Copco Air Compressor Stops or Does Not Start
• FAQs (Frequently Asked Questions)
• Additional Troubleshooting Pages
• Reader Questions & Responses
  • Atlas Copco XAS 375 JDC Shuts Down

Atlas Copco Air Compressor Troubleshooting

I have picked out this manual for an Atlas Copco air compressor which provides tips on various troubleshooting problems and their possible causes. Though these troubleshooting tips are specifically provided by Atlas Copco for one of their models of compressors, it is likely that you will be able to transfer this information and apply it to your Atlas Copco air compressor.

However, I recommend reviewing your specific Atlas Copco air compressor’s owner’s manual to find the troubleshooting guide provided by them.

We will take a look at the possible causes, and the correct action to take for the following symptoms with tables to follow:

• Compressor doesn’t unload
• Compressor pressure output too low
• Safety valve blows after loading
• Compressor stops or does not start

Atlas Copco Air Compressor Doesn’t Unload

Possible Causes	Correct Actions
Solenoid valve out of order	Replace the valve
The inlet valve doesn’t close	Check the valve, replace the valve if necessary

Atlas Copco Air Compressor Pressure Output Too Low

Possible Causes	Correct Actions
Choked air filter element	Replace filter element
Leak in control air tubes	Replace leaking tubes
The Inlet valve doesn’t fully open	Check valve, replace if necessary
Malfunctioning solenoid valve	Replace the valve

Atlas Copco Air Compressor Safety Valve Blows After Loading

Possible Causes	Correct Actions
Inlet valve malfunctioning	Inspect the valve, replace if necessary
Faulty safety valve	Replace
Oil separator element clogged	Replace the oil separator element

Atlas Copco Air Compressor Stops or Does Not Start

Possible Causes	Correct Actions
Faulty electrical power supply	Do not use an extension cord, check the supply
Thermal overload has tripped	The motor will restart when motor windings cool down

FAQs (Frequently Asked Questions)

Additional Troubleshooting Pages

Atlas Copco Troubleshooting

• Atlas Copco Compressor Fault Codes
• Atlas Copco Air Compressor Will Not Stay Running

Reader Questions & Responses

Atlas Copco XAS 375 JDC Shuts Down

Question

XAS 375 JDC – before it is warmed up enough to load it shuts down

Starting hard battery cranks starter for a while before it starts than before it is warmed up enough to load it shuts down.

Fluid levels are fine just had its 300-hour service.

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If you have any Atlas Copco air compressor troubleshooting questions, please leave a comment below, with a photo if applicable, so that someone can help you!