10 Common Air Compressor Problems With Solution

If your air compressor suddenly stops working, you may be left scratching your head, “What’s wrong with my air compressor?”

It would be best to find the cause of the air compressor failure. You must fix whatever problem you’re having as soon as possible to avoid an expensive repair later on.

Among the most general problems with air, we can fix compressors with the help of the following air compressor troubleshooting tips.

10 Common air compressor problems

1. Air Compressor Is Not Working

The most common reason for a compressor not working is a simple problem or oversight. Fortunately, air compressor operational problems are the simplest to diagnose and fix. The following are the most common issues that we can fix:

If indeed the compressor doesn’t have power, inspect the electric button and, if necessary, press the reset. It is also a good idea to check the breakers.

Absence of oil — Consumers often fail to check or replace the fluids in their vehicles, which has terrible effects. A low level of oil in your compressor’s oil tank could be the cause of its malfunction.

When the compressor doesn’t start, it could be because the pressure switch isn’t making contact with the internal circuitry. The pressure switch may be able to help with this.

Substitute the pressure switch with a lower cut-in pressure if the tank pressure drops compared to the cut-in pressure.

Having a machine that you’re accustomed to working suddenly stop working can be quite jarring. Generally, however, failures can be attributed to simple omissions, just like a shortage of liquid, or even a disconnected cord.

One of the other problems addressed in this air compressor troubleshooting guide may cause a compressor’s failure to operate.

2. Leakage of air

The cause of an air spill could be any one of several things. Luckily, we can repair leaks with the proper air compressor troubleshooting techniques. Massive leak air compressor issues can cause the following symptoms:

If the gauge starts dropping whereas the air compressor is turned off after you turn it off while it’s fully charged, you’ve got an air discharge.

Even if the compressor were to reboot to counteract the situation automatically, it would do so. The only thing you can do is find the leak’s source in this situation.

Apply liquid soap to all connections while the compressor is unplugged, and the pressure circuit is covered. The leak is found if bubbles appear at any point. If you can, try to fix the problem by tightening the coupler at which fizzing happens.

It’s a good idea to check the tank check valve, as faulty valves can cause air leaks. Check the tank valve to see if the pressure sensor drops significantly whenever the cylinder is shut off. Cleaning or replacing the valve may be necessary.

Remove the hose from the compressor if the air leakage occurs only when you plug the hose. The hose is the cause of your major leak if the pressure sensor does not drop.

3. Compressor Creating Too Much Noise

Loud noises from a reciprocating air compressor are usually by a few of the issues, which are easy to fix:

A common cause of the noise is a loose internal part. Tighten any slack within pulleys, cooler, flywheel, clamps, cord, or other accessories.

A major reason for engine noise is a crankcase that is defective or lacks oil. Determine if the crankshaft develops additional oil or bushings or if it must be new.

Trouble valves — The noise is also audible whenever the valve hits the valve plate. End up replacing the gasket and reinstalling the cylinder head after inspecting the piston for dirt.

Loosely mounted compressors also make a lot of noise due to their excessive vibration. Check if the resonance cushions are reinstalled or replaced after tightening the compressor’s bolts.

It can be tough to work over compressor noise if it becomes out of control. Odd noises can be a sign that something is wrong with a device’s internal components. Even if major repairs aren’t necessary right away, if nothing is done to stop the challenge with relatively simple adjustments, this might contribute to them in the future.

4. Persistent Compressor Vibrations

Any machine can cause problems with its vibrations. Throughout the situation of an air compressor, looseness could cause vibration. If tremors or vibrations continue, the framework implementation should be checked for looseness or orientation issues and narrowed or updated accordingly.

Bolts for mounting — Stiffen any loose bolts.

If the crankshaft is bent, you’ll need a new one.

Fix the belts tightly if they are too loose. Take a look to see if there is any damage. It could also be the moment for partial substitute.

A misaligned flywheel or pulley necessitates immediate attention.

As an alternative, if the compressor is not mounted properly, vibrations may continue. To verify the bottom of the unit, ensure all four legs are firmly on the ground. Tremors and vibrations may still be an issue even if all parts are properly.

5. Oil isn’t lasting as long as it should.

Simply put, a cylinder uses oil to function properly. Compressor oil expiration is one of the most problematic aspects of its operations. One or both of the four main elements may be responsible for a compressor’s oil supply constantly needing replacement:

Obstructions just at intake air are a sure sign of neglect. If this occurs, it is necessary to clean the filter immediately and, in some cases, replace it.

You can stop leaks by tightening machine bolts or substituting the gasket that holds an oil seal.

This same duration to substitute worn piston rings is now, not later, if you can see the wear on the rings.

Oil lubrication — If the oil’s viscosity has changed, it’s time to empty and replenish with new oil.

Oil can be lost if the compressor is continuously tilting; however, vibration pads can stabilize the compressor. Modify the cylinder if it is not working.

6. Surplus Compressor Oil Allows Air to Escape

Pneumatic instruments and equipment can be at risk if the compressor discharges excessive oil. Worse than that, oily Discharge can harm applications to the spot where they need to be scrapped and completely reworked. Because a few of the following issues usually cause oily Discharge, it is relatively easy to detect and fix.

Oily disposal can be by a compressor’s intake of air is restricted. When this happens, it’s time to clean or replace the air filters.

Oily Discharge can be by worn piston rings, which, like oil leaks, should be replaced regularly.

An oil tank that has been over-spilling can cause leakage into the Discharge if running low on oil. Getting the oil pressure to the “full” sign on the gauge requires lowering it.

A mismatch between compressor oil viscosity requirements — Discharge the oil and substitute it if your compressor calls for a unique oil viscosity than what would be present in the tank. Oily Discharge may also be by inverted piston rings, indicating the change in the crankshaft.

Air treatment is critical when using compressed gas for spray painting or sanding because aerosolized oil must not enter the airflow. The risk of damage projects by the involvement of oil particles in color schemes can be greatly reduced if you take prevention action.

7. At Discharge, the air is extremely hot.

Damage to products and substrates to treat and compressor tools and other internal mechanisms can occur if compressed air is at an excessively high temperature. The following are common causes of excessive air heat:

The cylinder, discharge tube, or intercooler may be clean if they have become clogged with dirt.

If you have the compressor installed in a warmer or badly vented area, consider moving it to a place where the airflow is fresher and more freely moving.

Discontinued head gasket — Heat is a foregone conclusion when the head gasket fails. As a result, a new head gasket may be necessary.

Burning compressed air is a sign that the valve plate needs to be updated.

Air compressors can generate heat if the filter becomes clogged with dust and lint. The filter changing may be necessary if overheating continues, notwithstanding the above substitutions.

8. Only a faint humming is coming from the compressor.

You could be at hazard of excessive heat and damage your motor by using an overheating compressor. Investigate the following to determine where the problem is coming from.

It’s imperative that your power supply is free of contaminants and follows the quickest path possible. Use a mains adapter with little other gadgets as to whether or not it begins the compression cycle. If that doesn’t work, try a power cable or power bar.

Remove the air compressor’s intake filter and restart the compressor without it. To see if the problem finishes by replacing the filter, try starting the compressor even without the intake filter in place.

The air pressure just above the pistons of the unloaded valve is among the prospective valve issues. The extra weight can cause the motor to shut down.

Overheating when applying compressed air to the ground, including when drying, cleaning, or dusting, can cause damage to the material. The valves, gaskets, filters, and internal surfaces can all be inspected and maintained to rectify the issues.

9. Too little pressure applied to the Tool’s Tip

Air restrictions, leaks, hose, or compressor belt issues are likely causes of air compressor building low pressure at the moment of use. The following problems are frequent, but we can fix them easily:

Definite points between the compressor and the tool, such as pressure blocks or leaks, can cut off or let the air out. Make sure to check the hoses and pipes for any kinks or holes, and then fix them by straightening them out or filling in the holes.

If the air intake valve is not working properly, the filter may be clean or replaced entirely.

A re tightening is usually all that is needed to fix a loose belt unless the belts are too old and need to change.

Up sizing the hose may be necessary if the hose has become too small to supply the required air pressure.

If a tool’s demands exceed the compressor’s capacity, there may be a pressure issue when it is being used. A good rule of thumb is to see if your compressor can manage any new tool’s Cfm and psi demands before investing in it. In the same way, when purchasing a new compressor, ensure it can handle all of your tools.

10. An Overworked Compressor

Problems with the motor are frequently to blame when a compressor performs admirably briefly before quickly and prematurely losing its steam. The following problems may be the cause of your machine’s frequent bog-downs:

An additional method of diluting an air compressor’s power supply is to use a power bar. Instead of distributing the power of an A/C source among multiple servers, give your results generated the total strength of one exit.

Circuit overloaded with power — An air compressor requires a minimum of a 15–20-amp breaker’s undivided attention. Please turn off any other machines using this circuit so that the compressor can get the full amount of power it needs.

Power lags can also be caused by unloaded valve failure. By manually actuating the valve function, we can resolve the issue. Drain the water and air from the tank, then re-insert the power. The piston needs replacing if the compressor stalls out again.

The use of compressed air necessitates a constant pressure source. If your compressor isn’t delivering the power you need, it could be because your compressor isn’t capable enough to support the tools you’re using.


Properly needs to care for air compressors can last for many years and perform admirably in a wide range of applications. To keep your compressors in top shape, follow the advice above for routine maintenance and problem-solving.