An air compressor is a necessary tool for many businesses and can be found in a variety of settings, from automotive garages to manufacturing plants. If you’ve noticed that your Air compressor runs and then shuts off more frequently than usual, there could be a few different reasons why. Today, I am going to explore 12 potential causes of this issue and what you can do to fix them.
12 Reasons why Air compressor runs then shuts off & how to fix the issue
1. Overheating
-The air compressor runs for a while, then shuts off due to the heat. It has an automatic shut-off switch to protect itself from overheating. There are several reasons why it might overheat, such as
-The air compressor is located in a hot environment
-The cooling fins on the compressor are dirty
-The intake filter is blocked
-There is something wrong with the cooling fans
To fix this problem, you need to clean the cooling fins, replace the intake filter, and check the cooling fans.
2. Lack of airflow
-If there is not enough airflow, the air compressor will overheat and shut off. The most common reason for this is a blocked intake filter. To fix this problem, you need to clean or replace the intake filter.
3. Wrong oil level
-If the oil level is too low, it will cause the air compressor to overheat and shut off. To fix this problem, you need to add oil to the compressor.
4. Wrong amp draw
-If the amp draw is too high, it will cause the air compressor to overheat and shut off. The most common reason for this is a bad capacitor. To fix this problem, you need to replace the capacitor.
5. Faulty Pressure Switches
The pressure switches on your air compressor regulate the flow of air into the unit. If these switches are faulty, they can cause your compressor to start and stop repeatedly as they try to regulate the flow of air. Pressure switches can be replaced relatively easily, so if you think this might be the problem, consult a qualified technician for assistance.
6. Thermostat failure
-If the thermostat fails, it will cause the air compressor to turn off automatically. To fix this problem, you need to replace the thermostat.
7. Automatic shut-off valve failure
-If the automatic shut-off valve fails, it will cause the air compressor to turn off automatically. To fix this problem, you need to replace the shut-off valve.
8. Incorrectly Sized Compressor
If your air compressor is too small for the amount of work you’re trying to do with it, it will frequently cycle on and off as it tries to keep up with demand. The best solution for this problem is to invest in a larger unit that can handle your business’s needs.
9. Incorrect Control Settings
It’s also possible that the control settings on your air compressor are incorrect. This issue is typically caused by human error and can be fixed by consulting your unit’s manual or hiring a qualified technician to take a look at it.
10. Overloading the Unit
When you’re constantly running your air compressor at or near capacity, it will likely start and stop frequently as it tries to catch up with demand. Try to spread out the work throughout the day so that your unit has time to rest in between uses.
11. Damaged or Leaking Air Tanks
Another potential cause of starting and stopping issues is damaged or leaking air tanks. If you think this might be the problem, inspect your tanks for any signs of damage or leaks and repair or replace them as necessary.
12. Wrong Power Supply
Another potential reason for your compressor’s starting and stopping issues is that it’s not getting the right power supply. Make sure that you’re using the correct voltage and amperage for your unit and that all the connections are tight.
FAQs: Air Compressor Runs Then Shuts Off
What are the common causes of why an air compressor runs and then shuts off?
There are different reasons which can cause your air compressor to trip off. It can be due to an issue with the pressure switch, unloader valve, or Erie Valve. If the pressure inside the tank gets too high, it will automatically trip off the power supply to prevent further damage. Also, a bad pressure switch or a stuck unloader valve can cause your air compressor to trip off.
How do I fix an air compressor that runs for a few seconds then shuts off?
First, check if the pressure switch is set properly. If it is not, adjust it following the user manual of your machine. Second, inspect if there is any blockage in the unloader valve or Erie Valve. You can clean it with a compressed air can or by using a toothpick. Third, ensure that there is no leakage in any of the air lines. Fourth, make sure that the motor capacitor is not faulty. Lastly, consult a professional technician if the problem persists after you have tried all these troubleshooting steps.
Why does my air compressor turn on and off rapidly?
An air compressor turns on and off rapidly when there is an issue with either the pressure switch or the unloader valve. If the pressure inside the tank rises too quickly, it trips off the power supply to prevent further damage. Also, if there is water in the tank, it will cause corrosion and ruin your machine in the long run.
Is it normal for my air compressor to turn on and off frequently?
If your air compressor is turning on and off more frequently than usual, it might be due to an issue with either the pressure switch or the unloader valve. First, check if the pressure switch is set properly according to your machine’s specifications. Second, inspect if there is any blockage in the unloader valve or Erie Valve. You can clean it with a compressed air can or by using a toothpick. Lastly, ensure that there is no leakage in any of the air lines.
What are some tips to avoid damaging my air compressor?
Here are some tips that you could follow to avoid damaging your air compressor:
– Check if the power source meets your machine’s requirements before plugging it in
– Use only genuine parts when replacing or repairing any component of your machine
– Do not overwork your machine beyond its capabilities
– Do not use inappropriate tools or chemicals when cleaning your machine
What should I do if my warranty has expired?
If your warranty has expired, you could still bring your machine to specific service centers which would still offer servicing and repairs for a fee. You could also try troubleshooting some issues on your own by referring to user manuals or guides available online. However, do note that service centers might only accept machines that are within their specified warranty period. Lastly, you could always purchase extended warranties for your machine which would cover servicing and repairs even after its original warranty has lapsed.
Where can I go for more help?
If you have tried all of these troubleshooting steps and your problem persists, you could always consult a professional technician for help. You could also contact customer support for more assistance regarding this matter.
Conclusion:
There are several different reasons why your air compressor might be starting and stopping more frequently than usual. By troubleshooting common issues which are explained above like overheating, incorrect control settings, and faulty pressure switches, you can usually get to the bottom of the problem relatively easily. However, if you’re still having trouble, don’t hesitate to contact a qualified technician for assistance.
Related:
Fixing Air Compressor Not Shutting Off!
Fixing Air Compressor Humming But Not Starting!
Olivia Archer provides in-depth coverage of air compressors, air compressor accessories, tire inflators and all things related to air compressors. She is a mechanical engineer and air compressor expert with a wealth of knowledge and experience in the industry.
Olivia’s articles are informative, well-researched and provide readers with valuable insights and information to help them make informed decisions when purchasing air compressors and accessories. She is passionate about the industry and is always looking for new ways to share her knowledge and expertise with readers. When she’s not writing for the website, Olivia can be found working on her own DIY projects, experimenting with different tools and techniques, and expanding her knowledge of the industry.
