Atlas Copco Air Compressor Troubleshooting

In my experience, troubleshooting the Atlas Copco XAS 185 JD7 air compressor can seem daunting, but with the right knowledge, it becomes a manageable task.


The key is to understand the machine’s intricacies and its common pain points. This compressor, known for its performance and resilience, can occasionally present slight hiccups.


These can range from a difficulty in starting, potential oil leaks, to a lack of pressure. But don’t worry, armed with a clear understanding and a systematic approach, you can navigate the air compressor troubleshooting process with confidence and ease.


Atlas Copco Air Compressor Troubleshooting


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If your Atlas Copco Air Compressor is experiencing issues, begin by checking common problem areas.

Ensure there is sufficient oil and the air filter isn’t clogged. Examine the pressure switch settings and adjust if necessary.

Make sure the air line is not blocked and compressor valves are free from obstruction. If these steps don’t resolve the issue, contact Atlas Copco for additional assistance.

Check your user manual for more specific tips on troubleshooting your Atlas Copco Compressor.


20 Common Atlas Copco Air Compressor Problems And Solutions:


1. Overheating:

Overheating can be caused by clogged filters, excessive ambient temperatures, or inadequate cooling systems. Regular maintenance and ensuring the compressor is placed in a well-ventilated area can mitigate this problem.


2. Oil Leaks:

Frequent inspections and replacing worn-out seals can prevent oil leaks.


3. Excessive Noise:

Worn-out parts or lack of lubrication often result in excessive noise. Regular servicing and lubrication can help reduce noise levels.


4. Pressure Fluctuations:

These could be due to air leaks, a dirty air filter, or problems with the pressure switch. Regular inspections and maintenance are essential to maintain consistent pressure.


5. Motor Failure:

Overloading and overheating may lead to motor failure. Ensuring the compressor operates within its capacity and proper cooling can prevent this.


6. Compressor Not Starting:

This could be due to power issues, faulty motor, or issues with the pressure switch. A thorough diagnosis is required to identify the root cause.


7. Decreased CFM:

Dirty filters, worn-out parts, or clogged pipes could result in decreased CFM. Regular maintenance can help keep the CFM at optimal levels.


8. Air Leaks:

Regular inspection for leaks and replacing faulty components can prevent air leaks.


9. Vibration:

Worn belts or uneven surfaces can cause excessive vibration. Regular maintenance and ensuring the compressor is placed on a flat surface can solve this issue.


10. Inadequate Cooling:

This could be due to poor ventilation or issues with the cooling system. Ensuring proper ventilation and regular servicing can enhance cooling efficiency.


11. Low Oil Level:

Regular top-ups and checking for leaks can maintain the oil level.


12. Faulty Pressure Gauge:

Regular calibration and replacement when necessary can keep the pressure gauge accurate.


13. Compressor Will Not Stop Running:

This could be due to air leaks or a faulty pressure switch. Identifying and fixing the issue can solve the problem.


14. Excessive Power Consumption:

Regular servicing and ensuring the compressor operates within its capacity can help reduce power consumption.


15. Air Dryer Failure:

Regular servicing and maintenance can prevent air dryer failure.


16. Pump Failure:

Overheating or lack of lubrication can cause pump failure. Regular servicing and ensuring adequate cooling can prevent this.


17. Piston Problems:

Regular servicing and replacing worn-out piston rings can mitigate this issue.


18. Unloader Valve Issues:

Regular inspections and replacement of faulty unloader valves can solve this problem.


19. Incorrect Pressure:

This could be due to air leaks, dirty filters, or a faulty pressure switch. Regular maintenance can help maintain the correct pressure.


20. Faulty Air Valves:

Regular inspections and replacement when necessary can keep the air valves functioning optimally.


Atlas Copco Compressor Fault Codes:

When it comes to Atlas Copco compressors, understanding fault codes can be crucial for efficient operation and maintenance.


Download the Atlas Copco compressor fault codes PDF to view the list of common codes and their descriptions.




Benefits Of Troubleshooting Atlas Copco Air Compressor:

Troubleshooting your Atlas Copco Air Compressor comes with numerous benefits.


First and foremost, it can significantly increase the lifespan of your equipment, saving you from costly replacements down the line.


Regular troubleshooting can also improve the efficiency of your compressor by ensuring it’s always operating at peak condition.


This not only reduces operational costs but also enhances the performance of any tools or systems reliant on the compressor.


Lastly, troubleshooting can help identify potential issues early, which can prevent sudden breakdowns and subsequent downtime in your operations.


Maintenance Tips For Your Atlas Copco Air Compressor:

When it comes to maintaining your Atlas Copco Air Compressor, several key areas need your attention:


1. Regular Inspection:

Conduct weekly visual inspections of your compressor. Check for any signs of wear or damage, especially to the hoses, seals, and valves.


2. Clean the Intake Vents:

Regularly cleaning the intake vents can prevent any blockage or build-up, ensuring that your compressor runs efficiently.


3. Change the Oil:

If your compressor is oil-lubricated, change the oil every 500-1000 hours of operation. Use only the oil recommended by Atlas Copco to prevent damage to the motor or other internal parts.


4. Check and Replace Air Filters:

Dirty or clogged air filters can lead to inefficiency and potential damage. Atlas Copco recommends replacing air filters every 2000 hours or annually, whichever comes first.


5. Drain Moisture from Tanks:

Moisture build-up in the tanks can cause corrosion over time. Regularly draining these tanks can help prevent such issues.


6. Regular Professional Servicing:

Schedule a professional service for your compressor at least once a year. They will be able to carry out a thorough inspection and identify any potential issues early.


Remember, the key to a long-lasting and efficient compressor lies in regular maintenance and prompt troubleshooting.


How Do I Reset My Atlas Copco Compressor?

Resetting your Atlas Copco compressor is a simple task you can perform yourself. Follow these steps:


1. Switch off the main power supply to the compressor.


2. Wait for a few minutes to allow the compressor to fully power down.


3. Once it is powered down, switch the power supply back on.


4. Press the reset button on the compressor control panel. This should reset your Atlas Copco compressor. In case the compressor does not reset or continues to show error messages, it’s recommended to contact professional service.


Always remember to follow safety guidelines while performing these tasks.


How Do I Know If My Atlas Copco Air Compressor Is Bad?

Determining whether your Atlas Copco Air Compressor is malfunctioning involves observing several key indicators.


The first sign that your compressor may be in poor condition is a decrease in air pressure output, which could be a result of leaks, clogged filters, or other internal issues.


Unusual noises, such as grinding or banging, can indicate mechanical problems within the compressor.


An increase in operational temperature may suggest issues with the cooling system or overuse of the compressor.


Oil in the air lines can signal a problem with the separator, while frequent tripping of the overload switch might mean that the motor is under stress.


In any case, if your compressor displays any of these symptoms, it is advisable to seek professional assistance for a comprehensive check-up and repair.


What Would Cause An Atlas Copco Air Compressor To Not Build Pressure?

There are several reasons why an Atlas Copco Air Compressor may not build pressure. It could be due to a leak in the system, which would result in a loss of compressed air. This can usually be identified by a hissing sound.


Another cause could be a faulty pressure switch, which is responsible for regulating the pressure within the system. If it’s malfunctioning, it won’t signal the motor to stop or start correctly.


The issue could also be with the check valve. If the check valve is clogged or damaged, it may prevent air from staying in the tank.


Lastly, worn-out piston rings could lead to air escaping back into the cylinder instead of being pushed into the tank.


If your compressor is not building pressure, it is best to consult with a professional technician to diagnose and fix the problem.


Atlas Copco Air Compressor Won’t Start:

If your Atlas Copco Air Compressor won’t start, several factors could be responsible.


The issue could stem from an electrical problem, such as a blown fuse or faulty wiring, preventing power from reaching the compressor.


Alternatively, the pressure switch might be malfunctioning, not sending the necessary signals to initiate the start-up process.


Additionally, a low oil level could prevent the compressor from starting, as most models come with a built-in safety feature that stops operation when oil levels are inadequate.


Lastly, issues with the motor, such as overheating or damage, could inhibit the compressor from starting.


If you encounter persistent problems with your compressor not starting, it is advisable to seek professional help to accurately diagnose and rectify the issue.


Atlas Copco Air Compressor Not Building Pressure:

If your Atlas Copco Air Compressor is not building pressure, there could be numerous reasons behind it.


The most common culprit is often a system leak, which can be identified by a hissing sound or a significant drop in pressure output.


On the other hand, a faulty pressure switch might fail to regulate the pressure accurately, causing a lack of adequate pressure buildup.


Issues with the check valve could also be the cause; if it’s clogged or damaged, it can prevent air from being stored in the tank, reducing the overall pressure.


Additionally, worn-out piston rings may allow air to escape back into the cylinder, impeding efficient pressure buildup.


Should you notice your Atlas Copco Air Compressor failing to build pressure, it’s advisable to immediately consult a professional technician for an accurate diagnosis and solution.


Atlas Copco Air Compressor Reset Button:

The Atlas Copco Air Compressor features a reset button designed to protect the compressor and provide a quick way to restart the system after a shutdown.


To reset your compressor, ensure the unit is switched off and safely powered down. Once confirmed, locate the reset button, usually found on the compressor’s control panel.


Press the reset button and then restore the main power supply to the compressor. If the compressor does not restart or continues to display error messages, it’s highly recommended to reach out for professional service.


Always remember, safety comes first while undertaking these tasks.


Atlas Copco Air Compressor Won’t Turn On:

If your Atlas Copco Air Compressor won’t turn on, there may be various issues at play.


A common cause is an electrical problem such as a tripped breaker, blown fuse, or damaged wiring, which could prevent power from reaching the compressor.


Another potential issue could be with the pressure switch or the motor itself. If the pressure switch is faulty, it may not send the correct signals to start the motor.


Similarly, if the motor is damaged or overheated, it could prevent the compressor from turning on.


A low oil level might also inhibit the operation, as many Atlas Copco models have a safety feature that prevents starting when oil levels are insufficient.


It’s recommended to check these areas one at a time to identify the issue. If the problem persists, it’s advisable to seek professional help for a thorough investigation and resolution.


Atlas Copco Air Compressor Check Valve Problem:

Check valve issues can lead to several performance-related problems in your Atlas Copco Air Compressor.


The check valve plays a crucial role in ensuring that air is retained within the compression tank, preventing it from flowing back into the pump.


If the check valve is faulty or damaged, it might result in the inability of the compressor to hold or build up sufficient pressure, leading to decreased output.


Symptoms of a problematic check valve often include a continuous air leak when the compressor is off, or the motor straining or failing to restart after a cycle.


If you identify any of these symptoms, it’s essential to conduct an immediate check of the valve. Replacement or cleaning of the check valve is often the recommended solution in such cases.


Always ensure your safety and, if in doubt, consult a professional technician.


Atlas Copco Air Compressor Cleaning Tips:

Keeping your Atlas Copco Air Compressor clean is integral to its optimal performance and longevity. Regular cleaning can prevent dust and dirt accumulation, which can affect the compressor’s operation.


Start by unplugging the compressor and releasing all the air pressure.


Then, clean the exterior surfaces with a cloth. Use compressed air to remove dust from the motor’s cooling fins and other hard-to-reach areas.


Clean or replace the air filter regularly, as a clogged filter can lead to decreased performance. Check the air intake vents and clean them if necessary.


If your compressor has a drain valve, ensure it’s clean and free from debris to prevent blockages.


Remember to clean the hoses and check them for cracks or wear. Lastly, always follow the manufacturer’s instructions when cleaning your compressor to avoid damaging any components.


If you’re unsure about any cleaning procedure, it’s best to reach out to a professional technician.


Atlas Copco Air Compressor Lubrication Tips:

Regular lubrication is essential to ensure the efficient operation of your Atlas Copco Air Compressor. The use of a high-quality, recommended oil can extend the life of your compressor and improve its performance.


Start by ensuring the compressor is powered off and the pressure is fully released. Locate the oil cap and remove it.


Use a clean, dry cloth to clean around the cap area to prevent any dust or debris from entering the oil reservoir.


Pour the recommended oil into the oil reservoir, ensuring you do not overfill it. The oil level should be between the minimum and maximum marks on the oil sight glass. Replace the oil cap securely.


Remember to check the oil level regularly and change the oil according to the manufacturer’s guidelines, typically after every 500-1000 hours of operation.


Always ensure safety while performing these tasks, and if you’re unsure, it’s advisable to consult a professional technician.


Storing Your Atlas Copco Air Compressor:

Proper storage of your Atlas Copco Air Compressor is crucial to maintain its functionality and prolong its lifespan.


When not in use, the compressor should be stored in a clean, dry, and well-ventilated area to prevent rusting or damage from environmental factors.


Before storage, make sure to clean the compressor thoroughly and drain any excess oil or water from the tank.


Release the air pressure from the system and ensure all switches are in the “off” position. The power cord should be neatly wound and secured to prevent damage.


If your compressor has a removable battery, it’s advisable to remove it for separate storage.


Lastly, cover the compressor with a cloth or a compressor cover to protect it from dust and debris.


Always refer to the manufacturer’s manual for specific storage instructions and recommendations. If you have any doubts, it’s advisable to consult a professional technician.




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