Airless sprayers are a popular choice among DIY enthusiasts and professional painters alike. They are efficient, fast, and cover large areas in a short amount of time. However, like any other tool, they can experience problems. One of the most common issues that users have reported is that their airless sprayer primes but won’t spray. This can be frustrating, especially when you have a large painting project to complete. In this article, we will explore the reasons why an airless sprayer might prime but won’t spray and how you can solve the problem.
Reasons Why Your Airless Sprayer Won’t Spray
Clogged Spray Tip
One of the most common reasons why an airless sprayer won’t spray is a clogged spray tip. The spray tip is the part of the sprayer that dispenses the paint. If it becomes clogged, the paint won’t come out, and the sprayer won’t work. To fix this problem, you need to remove the spray tip and clean it thoroughly. You can do this by soaking it in a cleaning solution or using a spray tip cleaner. Once it’s clean, reattach it to the sprayer and test it to see if it’s working correctly.
Dirty or Damaged Spray Gun Filter
Another reason why your airless sprayer might prime but won’t spray is a dirty or damaged spray gun filter. The filter is designed to prevent debris and dirt from entering the spray gun and clogging the tip. Over time, the filter can become clogged with paint and debris, which can cause the sprayer to malfunction. To fix this problem, remove the filter from the spray gun and clean it thoroughly. If it’s damaged, replace it with a new one.
Worn or Damaged Pump Packing
The pump packing is the part of the airless sprayer that creates pressure to dispense the paint. Over time, the pump packing can become worn or damaged, which can cause the sprayer to malfunction. If this is the case, the sprayer will prime but won’t spray. To fix this problem, you’ll need to replace the pump packing. This is a more advanced repair, so if you’re not comfortable doing it yourself, it’s best to take your sprayer to a professional.
Low Paint Levels
If your airless sprayer primes but won’t spray, it could simply be because the paint level is too low. When the paint level falls below the level of the suction hose, the sprayer won’t be able to draw in paint, and it won’t work. To fix this problem, you need to add more paint to the container and ensure that the suction hose is submerged in the paint.
Wrong Tip Size
If you’re using the wrong spray tip size for the type of paint you’re using, your airless sprayer might prime but won’t spray. Each type of paint requires a specific spray tip size. If you’re using the wrong size, the paint won’t atomize properly, and the sprayer won’t work. To fix this problem, check the manufacturer’s recommendations for the paint you’re using and ensure that you’re using the correct spray tip size.
Conclusion
In conclusion, an airless sprayer that primes but won’t spray can be frustrating, but it’s not an uncommon problem. By understanding the reasons why this might be happening, you can troubleshoot the problem and get your sprayer working again. Always follow the manufacturer’s recommendations for maintenance and repair, and if you’re not comfortable making repairs yourself, take your sprayer to a professional. With the right care and maintenance, your airless sprayer should last for years and provide you with excellent results.
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Frequently Asked Questions for Why Does My Airless Sprayer Prime But Won’t Spray?
1. Why is my airless sprayer not spraying even though it has been primed?
There could be several reasons why your airless sprayer is not spraying even though it has been primed. One possible reason is a clogged spray tip. Another possible reason is a damaged or worn out spray tip. You may also want to check if the pressure setting is too low or if there is air in the system.
2. How do I unclog a spray tip in my airless sprayer?
To unclog a spray tip in your airless sprayer, you can try removing the tip and soaking it in a cleaning solution. You can also use a small wire brush or a toothpick to remove any debris or buildup inside the tip. Another option is to replace the tip altogether if it is too damaged or worn out.
3. What should I do if there is air in my airless sprayer system?
If there is air in your airless sprayer system, you may need to bleed the system. To do this, turn off the sprayer and release the pressure by loosening the prime valve. Then, turn on the sprayer and let it run until a steady stream of paint comes out. You may need to repeat this process a few times until all the air is removed from the system.
4. Why is my airless sprayer not building up enough pressure?
If your airless sprayer is not building up enough pressure, it could be due to several reasons. One possible reason is a clogged filter. Another possible reason is a worn out or damaged pump. You may also want to check if the inlet valve or the pressure control valve is blocked or damaged.
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