As someone who’s spent a considerable amount of time in the field, I’ve encountered my fair share of hiccups with air compressors, and Powerex models are no exception.


But don’t worry – I’m here to guide you through the basics of Powerex air compressor troubleshooting.


Whether it’s a pressure issue, a motor malfunction, or something as simple as a leaky hose, I’ll equip you with the knowledge to identify and resolve common problems that may arise.


Believe me when I say: there’s a certain satisfaction that comes with getting your tools back up and running smoothly.


Powerex Air Compressor Troubleshooting


Powerex Air Compressor Troubleshooting:



When troubleshooting your Powerex Air Compressor, first check the basics: power source, pressure switch, and check valve.

If the compressor isn’t starting, ensure it’s properly connected to a power source and that the pressure switch is set to the correct pressure.

If the motor runs but isn’t building pressure, inspect the check valve for any signs of damage or wear.


20 Common Powerex Air Compressor Problems And Solutions:


1. Overheating:

Powerex air compressors may overheat if they are running continuously for extended periods. Ensure proper ventilation and give the motor rest periods to cool down.


2. Low Pressure:

This can be due to air leakage or a worn-out pump. Check for any leaks and replace the pump if necessary.


3. Oil Leakage:

If oil leaks are detected, it could be due to a faulty seal. Replace the gasket or tighten the bolts.


4. Noisy Operation:

Excessive noise could be due to loose parts or insufficient lubrication. Ensure all components are tightly fitted and maintain regular oiling.


5. Motor Doesn’t Start:

If the compressor’s motor doesn’t start, it could be an electrical issue. Check the wiring and connections.


6. Excessive Vibration:

High vibrations could damage the motor. Make sure the compressor is placed on a stable surface and that the motor mounts are secure.


7. Air Compressor Keeps Tripping Breaker:

This could be due to an electrical overload. Assess the electrical load and circuit breaker capacity.


8. Compressor is Not Building Pressure:

This might be due to a weak or broken valve. Inspect and replace the valve if necessary.


9. Pressure Switch Failure:

If the pressure switch is not functioning properly, it should be replaced.


10. Unloader Valve Problem:

If the unloader valve is not working, it can cause the compressor to start under load, potentially damaging the motor. Replace the unloader valve if necessary.


11. Slow to Build Pressure:

This could be due to a worn-out pump or clogged air filters. Check and replace these parts if needed.


12. Air Leaks from the Oil Cap:

This might be due to a faulty piston seal. Replace the seal as needed.


13. Air Compressor Cycles Frequently:

This problem could be due to a small air tank or a high air demand. Consider upgrading the air tank size or reducing the air demand.


14. Air Compressor won’t shut off:

This could be due to a malfunctioning pressure switch. It needs to be replaced.


15. Air Compressor is producing water:

This is usually because of condensation. A draining schedule should be maintained.


16. Compressor is not producing enough air:

This could be due to a clogged air filter. Replace the filter as needed.


17. Air Compressor is producing too much air:

This might be due to a faulty pressure switch. Replace the switch.


18. Oil in the discharged air:

This could be due to worn out piston rings. Replace the rings.


19. Compressor is extremely hot:

This could arise due to insufficient ventilation. Ensure proper ventilation.


20. Compressor motor hums but doesn’t start:

This might be due to low voltage. Check the voltage and rectify if necessary.


Benefits Of Troubleshooting Powerex Air Compressor:

Troubleshooting your Powerex Air Compressor can yield several benefits.


Firstly, it helps in maintaining the efficiency and longevity of your machine, ensuring that your air compressor performs optimally at all times.


Regular troubleshooting can also prevent costly repairs or replacements in the future by identifying minor issues before they escalate into major problems.


Additionally, it ensures safety in the workplace by reducing the risk of compressor-related accidents due to malfunctions.


Lastly, troubleshooting can lead to enhanced understanding of your equipment, enabling you to better manage its operation and maintenance.


Maintenance Tips For Your Powerex Air Compressor:


1. Regularly Inspect and Clean Air Filters:

Dirty or clogged air filters can drastically reduce the efficiency of your compressor. Make sure to inspect and clean them regularly for optimal operation.


2. Regular Drainage:

Water can accumulate in your compressor’s tank due to condensation. Make sure to drain this water regularly to prevent rusting and maintain the compressor’s performance.


3. Check Oil Levels:

If your compressor is oil-lubricated, regularly checking and replacing oil is crucial to prevent wear and tear of the motor.


4. Inspect Belts:

Check your compressor’s belts for any signs of wear or damage. Replace them if necessary to ensure smooth operation.


5. Hire a Professional:

While routine maintenance can be handled individually, it’s advisable to get your compressor serviced by a professional every once in a while to detect and fix any potential underlying issues.


These simple yet effective maintenance tips can help keep your Powerex Air Compressor in peak working condition, ensuring longevity and optimal performance.


How Do I Reset My Powerex Compressor?

If your Powerex Compressor needs resetting, follow these steps:


1. Switch off the compressor and unplug it from the power source. It’s crucial to ensure safety before starting the reset process.


2. Locate the pressure switch on your compressor. This component typically has a red or black button.


3. Press the reset button on the pressure switch. You should feel a click when it’s properly reset.


4. Plug the compressor back into the power source and switch it on. The compressor should now be reset and ready for use.


Remember, if your compressor frequently requires resetting, it could indicate an underlying issue. In such cases, it’s advisable to consult with a professional or contact Powerex customer service for further assistance.


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

Identifying a malfunctioning Powerex Air Compressor involves observing for certain signs. Here are a few common indications:


1. Unusual Noises:

If your compressor is making excessive noise or strange sounds, it may be indicative of an issue with internal components.


2. Decreased Air Pressure:

A significant decrease in air pressure can suggest a problem. This could be due to a leak in the air lines, a faulty pressure switch, or worn-out valves.


3. Overheating:

If your compressor is becoming excessively hot during operation, it may be a sign of a bad motor or insufficient oil lubrication.


4. Increased Energy Consumption:

A sudden spike in your power bills can be a hint towards a less efficient compressor, which is working harder to maintain the same performance.


5. Frequent Circuit Breaker Trips:

If your circuit breaker is tripping frequently when the compressor is running, it may suggest an electrical issue within the compressor.


If you notice any of these signs, it’s advisable to consult with a professional or contact Powerex customer service.


Always remember, timely troubleshooting and regular maintenance can help in preventing major issues and prolong the life of your air compressor.


What Would Cause An Powerex Air Compressor To Not Build Pressure?

Several factors could cause a Powerex Air Compressor to not build pressure effectively. These include:


1. Damaged or Worn-out Seals:

Over time, the seals in the compressor can wear out or get damaged, resulting in air leaks that prevent the compressor from building pressure.


2. Faulty Pressure Switch:

If the pressure switch is not functioning correctly, it might not signal the compressor to stop or start, affecting its ability to build pressure.


3. Clogged Air Filters:

Dirty air filters can restrict the airflow to the compressor, subsequently impacting the buildup of pressure.


4. Cracked or Leaking Hoses:

Even a small crack or leak in the hose can make it difficult for the compressor to maintain or build pressure.


5. Worn-out Compressor Valves:

Over time, the intake and outtake valves of the compressor can wear out, preventing the compressor from building pressure properly.


If you suspect that your compressor is not building pressure due to any of these reasons, it’s recommended to consult a professional or reach out to Powerex customer service to address the issue.


Regular maintenance and timely repairs can help prevent such problems and ensure optimal performance of your compressor.



Powerex Air Compressor Won’t Start:

If your Powerex air compressor won’t start, several factors could be responsible:


Electrical Issues:

Ensure the compressor is properly plugged in and the circuit breaker hasn’t tripped. If your machine is not receiving power, it won’t start.


Faulty Pressure Switch:

The pressure switch might not be adequately signaling the motor to start. If you suspect an issue with the pressure switch, consider replacing it.


Motor Problems:

The motor itself might be experiencing issues. Listen for any unusual noises when trying to start the compressor, as this could indicate a motor problem.


Low Oil Level:

If your compressor is oil-lubricated, a low oil level can prevent the machine from starting. Regularly check and replenish oil levels as needed.


Thermal Overload Protection:

If your compressor is equipped with thermal overload protection and it gets too hot, it may not start until it has cooled down.


Always remember, if you’re unable to diagnose or fix the problem, it’s recommended to consult with a professional or contact Powerex customer service.


Regular maintenance and early detection of issues can help prevent situations where your compressor won’t start.


Powerex Air Compressor Not Building Pressure:

If your Powerex Air Compressor is not building pressure, a number of potential issues could be the cause:


Leaky Air Lines:

Air lines that are damaged or improperly connected could be leaking air, preventing the compressor from building pressure.


Faulty Check Valve:

If the check valve is malfunctioning, it may be allowing air to escape from the tank back into the pump, inhibiting pressure build-up.


Damaged Piston Rings:

Worn-out or damaged piston rings could result in air leaking past the piston, which can lead to inefficient compression and a lack of pressure.


Inadequate Lubrication:

Without proper lubrication, the compressor’s parts could be creating excess friction, which may prevent the compressor from operating efficiently and building pressure.


If you’re experiencing issues with your compressor not building pressure, it’s recommended to work with a professional or reach out to Powerex customer service for assistance.


Regular maintenance, including checking air lines and ensuring proper lubrication, can help prevent these issues and support the longevity of your compressor.


Powerex Air Compressor Reset Button:

The Powerex Air Compressor is equipped with a reset button to safeguard the system from potential damage due to overheating or power surges. It typically protrudes from the motor casing and is clearly marked.


Triggered Reset Button:

A triggered reset button is a common sign that your compressor’s motor has been overloaded. This can be due to several factors, such as operating under extreme conditions or too many pressure cycles in quick succession.


How to Reset:

To reset your Powerex Air Compressor, ensure that the compressor is off and has had enough time to cool down if overheating has occurred. Press the reset button firmly until you feel it click into place.


After resetting, power on the compressor and observe its operation. If the reset button trips again shortly after resetting, or the compressor doesn’t operate normally, it’s advisable to consult with a professional or contact Powerex customer service.


Continuous tripping may indicate more serious issues that require expert attention.


Remember, regular maintenance can help prevent operational issues and prolong the lifespan of your compressor.


Powerex Air Compressor Won’t Turn On:

If your Powerex Air Compressor won’t turn on, there could be several reasons for this:


Power Supply Issues:

Before anything else, verify that the compressor is properly plugged into a working electrical outlet, and the circuit breaker has not tripped.


Faulty Pressure Switch:

A faulty pressure switch might not be signalling the compressor to turn on. If you suspect this is the case, a switch replacement may be necessary.


Motor Complications:

A fault in the motor could prevent the compressor from turning on. Listen for a hum or any unusual sounds when you try to start the compressor as this can point to motor problems.


Thermal Overload:

If your compressor has a thermal overload switch and it’s too hot, the compressor won’t start until it has cooled down.


In the event of any persistent issues, always consult with a professional or contact Powerex customer service. Regular maintenance and early detection of problems can prevent your compressor from failing to turn on.


Powerex Air Compressor Check Valve Problem:

The check valve on your Powerex Air Compressor serves a critical role in maintaining pressure within the air tank by preventing backflow of air.


If the check valve malfunctions or becomes damaged, you might notice the following symptoms:


Continuous Air Leakage:

When the compressor is off, air might continuously leak out of the unloader valve, indicating a faulty check valve.


Difficulty in Starting:

A faulty check valve could make it hard for the motor to restart when the tank is full, as the check valve allows pressure to back up into the pump.


Pressure Loss:

An ineffective check valve might cause your compressor to lose pressure, as it’s not preventing backflow effectively. If you notice any of these issues, the check valve might be the cause.


To confirm, you can attempt to remove and inspect the valve. If it’s damaged or malfunctioning, consider replacing it.


However, always remember, if you’re unsure or uncomfortable performing these tasks, it’s best to consult with a professional or reach out to Powerex customer service.


Regular maintenance can help prevent these issues and ensure the efficient operation of your air compressor.


Powerex Air Compressor Cleaning Tips:

Maintaining the cleanliness of your Powerex Air Compressor is a crucial part of its upkeep. Here are some tips to help you clean your compressor effectively:


Regularly Clean the Air Filter:

The air filter in your compressor should be cleaned regularly to ensure optimal performance.


This can be done by removing the filter and tapping it lightly to dislodge any dust or debris. If the filter is particularly dirty, consider replacing it.


Inspect and Clean the Components:

The other components of your compressor, such as the air lines and unloader valve, should also be regularly inspected for dirt and debris. If needed, use compressed air or a brush to clean these parts.


Check Oil Levels:

In addition to cleaning external components, it’s important to keep an eye on the oil levels in your compressor.


Taking care of your Powerex Air Compressor is essential for ensuring its optimal performance and longevity.


From checking the oil levels to cleaning the various components, following these tips can help keep your compressor running smoothly.


Powerex Air Compressor Lubrication Tips:

Proper lubrication of your Powerex Air Compressor is crucial to minimize friction and wear and tear, and to ensure optimal performance and longevity. Here are some tips to help you with compressor lubrication:


Select the Right Lubricant:

Choosing the correct lubricant is critical. Refer to your compressor’s user manual for the manufacturer-recommended type and grade of lubricant.


Regular Lubricant Checks:

Frequent checks of the lubricant levels are essential. If the level is low, top it off to the suggested limit. However, avoid overfilling, as this may cause operational issues.


Change Lubricant Periodically:

Regularly changing the lubricant is important to remove dirt, debris, and worn-out lubricant. The frequency of change will depend on usage and operating conditions, but a good rule of thumb is to change it every 500-1000 operating hours.


Monitor Lubricant Condition:

Keep an eye on the condition of the lubricant. If it appears dirty, gritty, or unusually thick, it might be time for a change.


Take note, always consult your air compressor’s user manual or a professional if you are unsure about the lubrication process.


By following these lubrication tips, you can help ensure the efficient operation and longevity of your Powerex Air Compressor.


Storing Your Powerex Air Compressor:

Proper storage of your Powerex Air Compressor when it’s not in use is just as crucial as its regular maintenance and cleaning. Here are some tips for storing your compressor:


Drain the Tanks:

Always drain the air tanks after each use to prevent moisture build-up, which can lead to internal rusting.


Clean Before Storing:

Before putting it away, clean the compressor thoroughly, removing dust and debris from all parts, including the air filter and unloader valve.


Cover the Compressor:

Use a cover to protect the compressor from dust and moisture when not in use. Make sure the cover is breathable to prevent condensation.


Store in a Dry, Cool Place:

Ensure the storage area is dry and cool to avoid rusting and the degradation of parts due to extreme temperatures.


Regular Checks:

Even when not in use, regularly check your compressor for any signs of wear, corrosion, or damage. Also, consider running it briefly every few weeks to keep the parts in good working order.


Remember, the longevity and performance of your Powerex Air Compressor are significantly influenced by how you store it.


If you have any doubts regarding the correct storage procedure, you can always reach out to Powerex customer service or consult your compressor’s user manual.