The most common part that fails on a compressor!

Does your air compressor fill up ok, but when it tries to restart it stalls and then 'kicks the breaker'? Does your on/off switch leak through the unloader tube on the side after it cuts off until and then continues to cycle on and off? Good chance you have a defective check valve!

Click here to troubleshoot.

• Follow the supply tube from your pump where it enters the tank.
• At the bottom of the tube where it enters the tank, you will find your
  check valve.
• You will not see the threads or the bottom because most of it is
  located inside of your tank.
• Now, match up your style with one of the ones below.
  

  (scroll down for more info)