Craftsman Air Compressor Troubleshooting

When your Craftsman air compressor is not operating as it should, it can be a significant setback, especially when you rely on it for various tasks.


Identifying the issue early and troubleshooting it can save you not only time but also the cost of unnecessary replacements.


In this Craftsman air compressor troubleshooting guide, we will take you through some common issues you might encounter with your Craftsman air compressor and provide practical solutions to get your equipment back up and running.


Remember, safety is paramount. Please ensure that you disconnect the compressor from the power source before attempting any troubleshooting steps.


Craftsman Air Compressor Troubleshooting


Craftsman Air Compressor Troubleshooting:


Craftsman Oil Free Air Compressor Problems Troubleshooting

Craftsman Air Compressor Model 919 Troubleshooting


Table Of Contents
  1. Craftsman Air Compressor Troubleshooting:


When troubleshooting a Craftsman Air Compressor, certain common issues may arise. The compressor might not start, it could be running but not building pressure, or it may be excessively noisy.

For each problem, there’s a specific set of checks and solutions to consider.

Always ensure you follow safety guidelines when operating or fixing your air compressor.


22 Common Craftsman Air Compressor Problems And Solutions:

Craftsman is a trusted name in air compressors, with a range of models to suit any needs. As convenient as they are to use, sometimes Craftsman air compressors may experience problems due to general wear and tear or mis-use.


Here are some common issues that you might encounter and solutions on how to fix them.


1. Compressor Will Not Start:

Ensure the power cord is properly plugged in and the circuit breaker has not tripped. If the motor is overheating, allow it to cool before attempting to restart.


2. Low Air Pressure:

Check for leaks in the compressor and the connected tools. If none are found, the air filter may be clogged and should be cleaned or replaced.


3. Compressor is Overheating:

This could be due to a clogged air filter, excessive use, or an environment that’s too hot. Clean or replace the air filter and give the compressor time to cool.


4. Unusual Noises:

Loose parts, a damaged motor, or low oil levels can cause unusual noises. Tighten any loose parts, check the oil level, and replace the motor if necessary.


5. Compressor Leaks Air:

This is typically due to a damaged gasket, seal, or valve. Replace the damaged part to stop the leak.


6. Compressor Shuts Off Too Soon:

This could be due to overheating. Make sure the compressor is in a well-ventilated area and that the air filter is not clogged.


7. Oil Leakage:

This could be the result of a damaged seal or gasket. Replacing the seal or gasket should resolve the issue.


8. Compressor Vibrates Excessively:

This could be due to an imbalance in the motor or pump. Check these components for signs of wear and replace as necessary.


9. Pressure Builds Slowly:

This may be due to a clogged intake filter or a leak in the system. Clean or replace the filter and check for leaks.


10. Compressor Runs Continuously:

This could be due to a faulty pressure switch or an air leak. Inspect the pressure switch for any damages and replace if necessary, and check for leaks in the system.


11. Compressor is Noisy:

This may be due to a lack of lubrication or loose parts. Make sure the compressor is well lubricated and tighten all parts.


12. Compressor Does Not Reach Cut-Out Pressure:

This could be due to a faulty pressure switch or a leak in the system. Inspect the pressure switch and replace if necessary, and check for leaks as well.


13. Compressor Tank is Rusting:

This is usually due to moisture build-up in the tank. Make sure to regularly drain the tank to prevent rusting.


14. Pump is Overheating:

This can be caused by a clogged air filter or overuse of the compressor. Clean or replace the air filter, and give the compressor time to cool.


15. Pressure Gauge is Not Accurate:

This is usually due to a faulty pressure gauge. Replacing the pressure gauge should solve the issue.


16. Compressor Does Not Build Pressure:

This can be caused by a faulty pump or a leak in the system. Check the pump for any damages and replace if necessary, and inspect the system for leaks as well.


17. Compressor Has Oil in Discharge Air:

This suggests the piston rings are worn out. Replace the piston rings to solve the problem.


18. Motor is Overloading:

This could be due to a blockage in the air lines or a faulty motor. Remove any blockages and replace the motor if necessary.


19. Air Compressor Tank is Leaking:

This might be due to a rusted or cracked tank. It’s advisable to replace the entire tank in this case.


20. Compressor Does Not Have Enough Airflow:

This could be due to a blocked air filter. Clean or replace the air filter as necessary.


21. Compressor Will Not Hold Pressure:

This is usually caused by a faulty pressure switch or leaks in the system. Inspect and/or replace the pressure switch, and check for leaks.


22. Motor Does Not Start Up:

Check the power cord and circuit breaker to make sure they are functioning properly. If the motor is overheating, allow it to cool before attempting to restart.



Benefits Of Troubleshooting Craftsman Air Compressor:

Troubleshooting your Craftsman air compressor is one of the most important steps in taking care of your appliance. Doing regular maintenance on your compressor can help prevent costly repairs and keep it running smoothly for many years.


Here are some tips to help you troubleshoot and maintain your Craftsman air compressor.


• Always read the owner’s manual before operating your Craftsman air compressor. This will ensure that you are using it correctly and safely.


• Inspect all hoses, clamps, fittings, and gauges before each use to check for any signs of wear or tear. If any parts need to be replaced, do so immediately.


• Make sure to keep the air filter clean and replace it when necessary.


• Be sure to use the right kind of oil for your Craftsman compressor, as using the wrong type can damage its seals and gaskets.


Additionally, make sure your Craftsman air compressor is properly lubricated and serviced regularly, according to manufacturer recommendation. Replace any worn-out or damaged parts as soon as possible.


Maintenance Tips For Your Craftsman Air Compressor:

When storing your Craftsman air compressor, drain all moisture from the tank and oil lines. This is to ensure that no corrosion occurs while it’s in storage.


Additionally, be sure to cover the unit with a plastic sheet or tarp before putting it away for long periods of time.


Taking these steps will help keep your Craftsman air compressor in good working order. If you’re having trouble with your Craftsman air compressor, it may be necessary to reset the unit.


To do this, first unplug the power cord and then turn off all valves connected to the compressor.


Next, locate the pressure switch and press down on its reset button for a few seconds before releasing it.


Then plug in the power cord and turn on all the valves to get your Craftsman air compressor running again.


If the issue still persists, it may be a sign that you need to take your Craftsman air compressor in for servicing or repairs.


Craftsman Air Compressor Tripping Breaker:

A Craftsman Air Compressor tripping the breaker can be attributed to several reasons, primarily overloading or a short circuit.


Overloading occurs when the compressor demands more electrical power than the circuit breaker can handle, causing it to trip.


On the other hand, a short circuit arises when an unintended path forms between two points in an electrical circuit, resulting in excessive current flow and hence tripping the breaker.


Regular maintenance checks and ensuring adequate power supply can prevent these issues, ensuring the efficient operation of your Craftsman Air Compressor.


How Do You Reset A Craftsman Air Compressor?

Resetting your Craftsman Air Compressor is a straightforward process that can help resolve some common issues.


Here are the steps:


1. Ensure Safety:

First, make sure the unit is unplugged from the power source to avoid any electrical accidents.


2. Turn Off All Valves:

Close all valves connected to the compressor. This includes both intake and outflow valves.


3. Locate Pressure Switch:

The pressure switch is usually a red or black button located on the compressor motor. Find this switch on your unit.


4. Press Down Reset Button:

Once you’ve located the pressure switch, press and hold the reset button for a few seconds.


5. Release Reset Button:

After holding the reset button, release it. This should reset your compressor.


6. Turn On the Compressor:

Finally, plug the unit back into the power source and open all the valves. Your Craftsman Air Compressor should now be reset and ready to use.


Remember, if your compressor continues to have issues after this reset process, it may need professional servicing. Always refer to your owner’s manual or contact a professional for further assistance.



Craftsman 1 Hp 3 Gallon Air Compressor Troubleshooting:

If your Craftsman 1 Hp 3 Gallon Air Compressor is not operating as expected, there could be several reasons.


First, check if the compressor is plugged into an electrical outlet that is functioning correctly.


If that’s not the issue, the motor might be overheating, in which case, you should let it cool down before attempting to use it again.


Non-functionality could also be due to an overloaded pressure switch; to handle this, reset the switch.


If the compressor has difficulty maintaining pressure, check for possible air leaks, or the check valve may need to be replaced.


Always remember that compressor maintenance and troubleshooting should be carried out with safety as a priority, and if a problem persists, please seek professional assistance.


Craftsman Oil Free Air Compressor Problems:

One of the common problems faced by users of the Craftsman Oil Free Air Compressor is the inability of the compressor to build pressure.


This issue often results from a damaged check valve that prevents air from returning to the pump.


Another frequent problem is an irregular motor function which can be due to a faulty capacitor causing the motor to run irregularly or not start at all.


Lastly, a worn-out piston seal might lead to compressor oil leakage, impacting the overall performance of the unit. It’s crucial to address these issues promptly to ensure the longevity and efficiency of the compressor.


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

Recognizing the signs of a malfunctioning Craftsman air compressor can save you from undue inconvenience.


Some common symptoms include:


1. Inability to Build Pressure:

If the air compressor fails to build up to the desired pressure or takes unusually long to reach the set pressure level, there may be an issue with the compressor.


2. Excessive Noise or Vibrations:

Unusual noise or excess vibrations during operation can indicate that the compressor is struggling to work effectively and might be failing.


3. Overheating:

If your Craftsman air compressor becomes excessively hot during operation, it could be a sign of malfunction. This could arise from air leaks, a faulty motor, or insufficient lubrication.


4. Frequent Tripping of Circuit Breaker:

If the compressor is causing the circuit breaker to trip frequently, this could indicate an electrical issue with the unit.


5. Oil or Air Leaks:

Visible oil leaks or hissing sounds indicating air leaks are strong signs that your air compressor may need repairs.


If you encounter any of these symptoms, it’s recommended to conduct a thorough inspection or seek professional help to ensure the longevity of your Craftsman air compressor.


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

Several issues can cause a Craftsman Air Compressor to not build pressure effectively:


1. Damaged Check Valve:

The check valve ensures one-way flow of air into the tank. If it’s damaged or clogged, it won’t let air into the tank, preventing pressure build-up.


2. Leaky Air Lines or Connections:

Any leaks in the air lines or connections can cause a significant drop in pressure. Regularly inspect for hissing sounds or visible air leaks.


3. Worn Out Compressor Rings or Cylinder:

The compressor rings and cylinder can get worn out over time, reducing their ability to compress air, resulting in low pressure.


4. Inadequate Power Supply:

If your compressor is not getting an adequate power supply, it may not be able to build up to its maximum pressure.


5. Faulty Pressure Switch:

The pressure switch controls the motor function. If it malfunctions, it can cause the compressor to not build up pressure.

It’s crucial to address these issues immediately to prevent further damage and ensure that your air compressor functions optimally. Always refer to your owner’s manual or seek professional help for repairs.


Craftsman Air Compressor Won’t Start:

If your Craftsman Air Compressor won’t start, there could be several reasons behind this issue:


1. Power Issue:

Before anything else, check to make sure the compressor is properly plugged in and the power switch is turned on. In some cases, a blown fuse or a tripped circuit breaker could be the culprit.


2. Pressure Switch Fault:

If the pressure switch is not set correctly or is malfunctioning, it might prevent the compressor from starting. You can try to reset the pressure switch and see if that resolves the problem.


3. Motor Issue:

If your compressor’s motor can’t turn over, it might be due to a misaligned or seized motor. In such cases, professional service may be necessary.


4. Cold Weather:

Cold weather can thicken the oil, making it difficult for the compressor to start. In such situations, you might want to consider using a thinner oil.


5. Capacitor Failure:

The starting capacitor gives the motor the initial push to start running. If this component fails, the motor will not start.


If all these checks don’t solve the problem, it would be best to seek professional help. Remember, regular maintenance can prevent many of these issues from occurring in the first place.


Craftsman Air Compressor Not Building Pressure:

If your Craftsman Air Compressor is not building pressure, it could be due to several reasons. A faulty pressure switch, worn-out compressor rings or cylinder, inadequate power supply, damaged check valve, or leaky air lines and connections can all contribute to this issue.


It is essential to inspect each part carefully. If the pressure switch is malfunctioning, it may need resetting or replacement. Worn-out compressor rings or cylinders may require a repair or replacement.


Ensure the power supply is adequate and the check valve is functioning correctly to allow one-way air into the tank.


Regular inspections for any leaks in air lines or connections are also crucial. If none of these measures resolve the issue, professional assistance may be required.


Remember, timely maintenance can prevent such problems from escalating.


Craftsman Air Compressor Reset Button:

The reset button on your Craftsman Air Compressor is a crucial component that helps protect your device from damage due to overheating or overloading.


If your compressor shuts off unexpectedly, the reset button might have triggered as a safety precaution. To reset your Craftsman Air Compressor, locate the red or yellow reset button usually found at the end of the motor cord.


Press this button to reset the compressor. Make sure the compressor is off before doing so. Once reset, turn the compressor back on.


If the reset button pops out again after reset or the compressor doesn’t start, it indicates an underlying issue that needs immediate attention. Consult your user manual or a professional for further assistance.


Craftsman Air Compressor Won’t Turn On:

When your Craftsman Air Compressor won’t turn on, it might be due to several factors. The first thing to check is the power source.


Ensure that the compressor is plugged in correctly and that there’s no issue with the power supply. If the compressor is plugged in and the power source is functioning, but the compressor still won’t turn on, it could be due to a faulty pressure switch.


Try resetting the switch to see if that resolves the issue. If not, the problem could lie with the motor. If the motor is seized or misaligned, the compressor may not be able to turn on.


This usually requires professional attention. In some instances, a failed starting capacitor might be the cause. The starting capacitor provides the initial push for the motor to start running.


If it fails, the motor won’t start, necessitating a replacement of the capacitor. Lastly, remember that cold weather can affect the compressor’s performance as it thickens the oil, making it harder for the compressor to start.


Using a thinner oil in such situations can help. If none of the above resolves the issue, it’s recommended to seek professional help.


Craftsman Air Compressor Check Valve Problem:

A common issue with Craftsman Air Compressors can be related to the check valve. The check valve ensures one-way air flow into the tank.


If it malfunctions, the air might flow back to the pump, causing the motor to face resistance when trying to start, and in worse scenarios, it can prevent the compressor from building adequate pressure.


If you notice that your compressor is having trouble starting or is not building pressure, a faulty check valve could be to blame. You can confirm this problem by removing the discharge tube from the pump to the tank.


If air blows out of the tube when the compressor is off, then the check valve is likely faulty and needs replacing.


Always remember to disconnect the compressor from the power source before conducting any checks or repairs.


Craftsman Air Compressor Cleaning Tips:

Routine cleaning is essential to keep your Craftsman Air Compressor running efficiently. Start by ensuring the compressor is turned off and disconnected from the power supply.


Use a soft brush or a compressed air duster to clear any dust or debris from the exterior, paying particular attention to the motor and pump. Clean the air filter regularly to ensure optimal air intake.


If the filter is excessively dirty or damaged, consider replacing it. Regularly drain the air tank to prevent moisture build-up which can lead to rusting.


Use a clean, damp cloth to wipe down the tank and dry it thoroughly afterwards. Always reassemble all parts securely after cleaning.


Remember, a clean compressor not only operates more efficiently but also has a longer lifespan.


Craftsman Air Compressor Lubrication Tips:

Proper lubrication is crucial for the smooth operation and longevity of your Craftsman Air Compressor. Regularly check the oil level using the sight glass or dipstick provided, ensuring it’s between the minimum and maximum marks.


Use high quality, non-detergent, single viscosity, air compressor oil for lubrication. Avoid using automotive oil as it may contain additives that can damage the compressor.


When adding or changing oil, make sure the compressor is turned off and cooled down to prevent possible burns.


Use a funnel to avoid spills and always fill to the manufacturer-recommended level, being cautious not to overfill.


Change the oil regularly based on usage and environment; a general rule of thumb is to change the oil every 500-1000 hours of operation or at least once a year. Always dispose of used oil responsibly.


Remember, maintaining correct oil levels and using proper oil can prevent excessive wear and tear, thus extending the life of your compressor.


Storing Your Craftsman Air Compressor:

Proper storage of your Craftsman Air Compressor is critical to maintain its efficiency and longevity.


Before storing, ensure that the compressor is cleaned, lubricated, and fully drained of any excess air or moisture.


Store it in a cool, dry place to prevent rust or corrosion. It should be kept off the ground, preferably on a shelf or raised platform, to avoid dirt and water damage.


Also, cover your compressor with a breathable material to keep dust and debris at bay while allowing for air circulation.


If you’re storing it for an extended period, consider running it for a few minutes every month to keep the parts in good working condition.


Lastly, remember to revisit the user manual for any specific storage guidelines provided by the manufacturer.


Applying these practices can significantly aid in preserving the performance and lifespan of your compressor.



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