Clarke Compressor Problems Troubleshooting

As someone who has personally faced the ordeal of a malfunctioning Clarke air compressor, I understand the frustration that comes with it.

But don’t worry, troubleshooting air compressor doesn’t require extensive technical knowledge or a call to an expensive professional.

With a keen eye and a systematic approach, you can identify the most common issues, such as pressure inconsistencies, motor complications, or oil leaks.

I’ll guide you through the process, helping you get your Clarke air compressor back to its optimal performance in no time.

Clarke Compressor Problems Troubleshooting

Clarke Compressor Problems:

Table Of Contents
  1. Clarke Compressor Problems:

Troubleshooting a Clarke air compressor primarily involves checking the power supply, examining the pressure switch, and ensuring the intake air filter is clean and unblocked.

Always disconnect the power before beginning any troubleshooting to ensure safety.

If the compressor does not start, check the power supply to ensure it is connected and providing adequate voltage.

If the power is OK, examine the pressure switch to confirm it has not tripped or become blocked.

Lastly, remove the intake filter and clean or replace it if necessary. Once these steps are complete, reconnect the power and test again.

20 Common Clarke Compressor Problems And Solutions:

Let me tell you, I’ve been through the wringer with my Clarke Air Compressor! So, it’s time to put my experiences to good use and help you troubleshoot and solve some common problems.

1. Overheating:

This is a common issue with Clarke air compressors. It can be caused by several factors, such as a dirty intake filter or inadequate ventilation. The solution is to clean or replace the intake filter and ensure the compressor is in a well-ventilated area.

2. Oil Leakage:

This can occur due to worn-out seals. The fix is to replace the seals.

3. Pressure Fluctuations:

This could be due to a defective pressure switch. It’s advised to replace the switch to solve this issue.

4. Excessive Noise:

Often, this is caused by loose parts or insufficient lubrication. Tighten any loose parts and ensure the compressor is adequately lubricated.

5. Compressor not Starting:

This can be the result of a power supply issue or a faulty motor. Check the power supply, and if it’s not the problem, it may be necessary to replace the motor.

6. Air Leaks:

This can be due to worn-out hoses or connections. Replace any worn parts to resolve the issue.

7. Reduced Airflow:

A blocked air filter can be the culprit here. Clean or replace the air filter.

8. Motor Runs but No Air Pressure:

This could be a result of a damaged check valve. Replace the check valve to solve this issue.

9. Belt Slippage:

Loose or worn-out belts could lead to this problem. Tighten or replace the belts as required.

10. Slow Pump:

A slow pump can be caused by improper voltage or dirty valves. Check and adjust the voltage, or clean the valves.

11. Pump Seizures:

This generally happens due to inadequate lubrication. Ensure the pump is properly lubricated.

12. Blown Fuses or Tripped Breakers:

This could be due to an overload. To fix this issue, reduce the load on the compressor.

13. Excessive Vibration:

Loose mounting bolts can lead to this problem. Tighten the mounting bolts.

14. Compressor Runs Continuously:

A faulty pressure switch could be causing this. Replace the pressure switch.

15. Air Pressure Too High:

This could be due to a malfunctioning pressure regulator. Adjust or replace the regulator.

16. Low Oil Level:

This is usually caused by an oil leak. Check for leaks and refill the oil as needed.

17. Dirty Oil:

This is typically a result of infrequent oil changes. Regularly change the oil to prevent this issue.

18. Rusty Tank:

Moisture accumulation can cause rust. Drain the tank regularly to prevent moisture buildup.

19. Faulty Safety Valve:

A malfunctioning safety valve can lead to dangerous situations. Replace the valve immediately.

20. Worn Out Pistons:

This can result in reduced pressure. You should replace the pistons.

Please remember, if you’re unsure about any of these procedures, it’s always best to consult with a professional.

Benefits Of Troubleshooting Clarke Air Compressor:

Troubleshooting your Clarke Air Compressor can have several benefits.

Firstly, it allows you to identify potential issues before they become major problems, thus saving you time and costly repairs in the future.

Secondly, it can help maintain optimal performance of the compressor, ensuring it operates at its maximum efficiency.

This not only extends the life of your compressor but also reduces energy consumption, leading to savings on your utility bills.

Lastly, troubleshooting can enhance safety by preventing malfunctions that could potentially cause injury or damage to your property.

Maintenance Tips For Your Clarke Air Compressor:

Maintaining your Clarke Air Compressor is essential in preserving its performance and longevity. Here are some tips to keep your machine running smoothly:

1. Regular Cleaning:

Make sure to clean your compressor periodically to prevent dust and grime buildup, which can hamper its performance. Special attention should be given to air filters as they can easily become clogged.

2. Lubrication:

Lubricate moving parts regularly to minimize wear and tear. Always use the recommended type of oil for your specific model.

3. Check Belts:

Inspect the compressor’s belts regularly for any signs of wear or damage. Replace them as necessary to prevent unexpected breakdowns.

4. Drain Moisture:

Ensure to drain any condensation from the compressor’s tank after each use. Excessive moisture can lead to corrosion over time.

5. Routine Check:

Conduct routine inspections for any signs of leaks or other issues. Early detection and resolution of problems can prevent more serious issues down the line.

6. Proper Storage:

When not in use, store your compressor in a clean, dry place to prevent rust and other damage.

Remember, a well-maintained compressor is more efficient, safer, and lasts longer.

Are Clarke Compressors Any Good?

Clarke air compressors are renowned for their reliability and performance. They cater to a wide range of applications, from home garages to industrial settings, thanks to their diverse product line.

Clarke compressors excel in terms of durability, standing up well to regular use and harsh environments.

They come with well-designed features that enhance ease of use, such as clear control panels and easily accessible components.

Moreover, they have efficient cooling systems that help to extend the lifespan of the equipment.

While every piece of machinery can present issues over time, Clarke’s customer service is generally responsive and their compressors come with a robust warranty.

Therefore, Clarke compressors are generally a good investment for those looking for long-term, reliable pneumatic power.

Why Does My Clarke Compressor Keep Tripping?

If your Clarke compressor keeps tripping, this could be due to several reasons.

Overloading is one of the common factors, if the compressor is working harder than it is designed to, it will automatically shut off to prevent damage.

This could be due to attempting to power too many tools simultaneously, or because the power supply is insufficient.

Another reason could be a faulty unloader valve. If the unloader valve isn’t functioning correctly, the compressor may have difficulty starting up and could trip as a result.

Additionally, an overheated motor can cause the thermal overload switch to trip. This issue can arise from a lack of proper ventilation or from the compressor running for extended periods without appropriate breaks.

Always remember to check the user manual or seek professional assistance when troubleshooting to avoid causing further damage to your compressor.

How Do You Reset A Clarke Air Compressor?

Resetting a Clarke Air Compressor can be achieved by following these steps:

1. Ensure the compressor is turned off, and unplug it from the power source.

2. If your compressor has tripped, wait for it to cool down completely to prevent any potential damage.

3. Locate the reset button. This is usually a red or black button situated on the motor housing.

4. Press the reset button firmly until you hear a click. This indicates that the compressor has been reset.

5. Reconnect the air compressor to the power source and turn it on. Ensure you check the operating manual for your specific model as the resetting process may vary slightly depending on the model of the Clarke Air compressor.

If the compressor continues to trip after resetting, it may indicate a deeper issue that needs professional attention.

How Do I Know If My Clarke Air Compressor Is Bad?

Determining if your Clarke Air Compressor has a problem involves observing several signs.

If the compressor fails to start despite being properly connected to a power source, it may indicate an issue.

Similarly, if the compressor keeps tripping or overheating, it could be a sign of an underlying problem. Another common issue is when the compressor fails to build or maintain pressure.

This could be due to a leak in the air lines, a worn-out pressure switch, or a faulty check valve.

Unusual noises during operation can also indicate a problem, such as a faulty motor or damaged internal components.

If you notice any of these signs, it’s recommended to seek professional assistance in diagnosing and repairing the issue to avoid further damage.

What Would Cause A Clarke Air Compressor To Not Build Pressure?

If your Clarke Air Compressor is not building pressure, several underlying issues may be at fault.

Firstly, there could be a leak in the air lines, causing air to escape before it can build up in the tank. This can be due to worn seals or loose connections.

Secondly, the pressure switch might be defective, failing to signal the motor to continue running once tank pressure drops below a certain point.

Thirdly, the check valve could be malfunctioning. If the check valve is not closing properly, air can escape back through the pump, preventing pressure from building up in the tank.

Finally, the compressor’s pump might be worn or damaged, reducing its ability to efficiently compress air.

If your Clarke Air Compressor is experiencing this issue, it’s recommended to consult with a professional for a precise diagnosis and solution.

Clarke Air Compressor Won’t Start:

If your Clarke Air Compressor won’t start, it could be due to a number of reasons.

First, check if there is an electrical issue, such as a blown fuse, tripped breaker, or inadequate power supply.

It’s also possible that the motor has overheated; if so, allow it to cool down before trying to restart.

Another possibility is a problem with the pressure switch, ensure it’s set to the correct cut-in pressure and that it’s functioning properly.

If the compressor still doesn’t start, the issue might lie with the motor or the capacitor; these components often require professional assessment and repair.

Remember that conducting regular maintenance can prevent many of these issues and extend the lifespan of your compressor.

Clarke Air Compressor Not Building Pressure:

If your Clarke Air Compressor is not building up pressure, the issue could be due to a number of reasons.

One of the most common is an air leak either in the compressor tank itself or in the air line connections. This can be diagnosed by listening for a hissing sound or feeling for air escaping.

Alternatively, your compressor’s intake valve or unloader valve may be malfunctioning, leading to insufficient air intake or improper unloading of compressed air, respectively.

Another potential issue is a defective pressure switch that fails to keep the motor running when the pressure drops.

It’s also possible that the compressor’s pump might be worn or damaged, thus inhibiting its ability to compress air efficiently.

If you encounter this issue, it is advisable to consult a professional for precise diagnosis and repair.

Clarke Air Compressor Reset Button:

The reset button on a Clarke Air Compressor is a critical component, primarily acting as a safety feature. If the compressor motor overheats or draws excess current, the reset button trips to prevent damage to the motor.

To reset the compressor, ensure it’s turned off and disconnected from the power source. Allow it to cool down if it was previously running.

The reset button is typically red or black, located on the motor housing. Press it firmly until you hear a click, this signals that the compressor has been reset.

Remember to refer to your model’s operating manual as the resetting process could vary slightly across different models.

If the compressor repeatedly needs resetting, it may indicate a serious issue that requires professional assistance.

Clarke Air Compressor Won’t Turn On:

If your Clarke Air Compressor won’t turn on, it could be due to several issues.

Start by checking the power supply, make sure the outlet is functioning and the compressor is properly plugged in.

Next, inspect the power cord and switch for any visible damage. The problem could also be a faulty motor or capacitor, in which case you’ll need professional assistance to replace these parts.

Overheating can cause the compressor to shut down; ensure the compressor has cooled down before attempting to restart it. Also, confirm that the pressure switch is set to the appropriate cut-in pressure.

Keep in mind that regular maintenance can help prevent these issues, improving the efficiency and longevity of your Clarke Air Compressor.

Clarke Air Compressor Check Valve Problem:

A check valve problem in your Clarke Air Compressor can result in several issues, one of which is the inability of the compressor to build up pressure.

A malfunctioning check valve can fail to close properly, allowing compressed air to flow back towards the pump instead of into the tank.

This issue can often be identified by a hissing sound coming from the area of the pump when the compressor shuts off.

Another sign could be the compressor motor struggling to restart after a cycle. If you suspect a check valve issue, it’s advisable to consult with a professional for appropriate diagnosis and repair.

Do remember that a faulty check valve should be replaced rather than repaired, as this part is not typically serviceable.

Clarke Air Compressor Cleaning Tips:

Regular cleaning of your Clarke Air Compressor is essential to ensure its optimal performance and longevity. Here are a few helpful tips:

1. External Cleaning:

Keep the outer surface of your compressor clean by wiping it with a dry cloth regularly. Remove any accumulated dust or dirt, paying particular attention to the vent areas, which are crucial for maintaining the necessary cooling airflow.

2. Air Filter Cleaning:

The air filter should be cleaned frequently to ensure efficient operation. If it’s clogged, it can reduce the compressor’s performance and cause overheating. To clean the air filter, remove it from the compressor, tap it gently to dislodge dust and debris, then use a soft brush or a vacuum cleaner to remove any remaining dirt.

3. Tank Draining:

It’s essential to drain the compressor tank regularly to prevent moisture buildup which can lead to rusting. Ensure the compressor is turned off and pressure is fully released before opening the drain valve.

4. Cleaning the Check Valve:

If the check valve is accessible, clean it by removing it and soaking it in a suitable solvent. After cleaning, ensure it’s completely dry before reinstallation.

Remember, always refer to your Clarke Air Compressor manual for specific cleaning instructions and safety guidelines.

Clarke Air Compressor Lubrication Tips:

Proper lubrication of your Clarke Air Compressor is critical for its optimal functioning and longevity. Here are some helpful tips:

1. Use the Right Oil:

Always use the type of oil recommended in your compressor’s manual. Avoid substituting it with motor oil or any other type of oil as they might not possess the necessary properties for compressor lubrication.

2. Check Oil Level Regularly:

Monitor the oil level using the sight glass or dipstick provided. The oil should ideally sit in the middle of the sight glass. If the oil is low, refill it to the recommended level.

3. Change Oil Periodically:

It’s crucial to change your compressor’s oil at intervals suggested in your user manual. Regular oil changes help to prevent buildup of debris and contaminants.

4. Clean Oil Fill Cap:

Keep the oil fill cap clean. Before removing the cap for oil checks or refills, wipe it clean to prevent dust or debris from falling into the oil reservoir.

5. Don’t Overfill:

Overfilling the oil reservoir can lead to issues like excessive carbon buildup and increased operating temperature. Always stick to the recommended oil level.

6. Service Regularly:

Regular servicing by a professional can help ensure that your compressor’s lubrication system is functioning optimally. They can also identify and fix potential issues before they escalate.

Remember, following the right lubrication practices can significantly improve the efficiency and lifespan of your Clarke Air Compressor.

Storing Your Clarke Air Compressor:

Proper storage of your Clarke Air Compressor is vital in preserving its functionality and ensuring a longer lifespan. Here are some steps to follow:


Always store your compressor in a dry, clean, and well-ventilated space. Excessive dust, moisture, or heat can cause damaging wear and tear over time.

Drain Air:

Before storing, remember to drain any excess air from the tank to prevent pressure build-up which can cause potential damage.

Oil and Fuel:

If your compressor is not going to be used for an extended period, consider draining the oil and fuel to prevent gumming and clogging of the system.

Cover Up:

Use a protective cover to shield the compressor from dust and dirt. Avoid using plastic as it can trap moisture, instead opt for breathable material like canvas.

Regular Checks:

Even in storage, regular checks and maintenance are crucial. Check for any signs of rust, oil leaks, or other damage regularly.

Remember, the longevity of your Clarke Air Compressor heavily relies on how well it is stored when not in use. Always refer to your compressor’s user manual for specific storage guidelines.

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