Running or cracking paint is usually the result of holding your paint sprayer too close to the surface that you’re painting, leading to an uneven and unattractive finish. Common Problems with Paint Sprayers and How to Fix Them, That said, paint sprayers aren’t perfect. You'll finish your DIY projects a lot quicker when you're using a house paint sprayer indoors and out. You should have no problem priming your pump after that. Oil is seeping into combustion chamber.

Many people new to airless spray equipment deal with issues priming their pumps. Turn pressure control switch ON. Hunker may earn compensation through affiliate links in this story.

First, make sure that your prime spray valve is in prime position. If you see a clog, clean it out and try priming your pump again. It's struggling to maintain a steady spray. Release the prime spray valve briefly, then check the intake filter. What To Do If Sprayer Doesn't Spray After Priming.

If you use the right amount of pressure, you’ll cut down on overspray significantly. Check your inlet screen for clogs and make sure that your suction tube is totally immersed in paint. Turn off the power to your sprayer if it still won't build pressure. There is a ball valve just inside the housing that can become stuck, preventing the paint from being pulled into the pump.

Lock the trigger when the spray gun is not in use, and always shut off the sprayer before performing any maintenance or repairs. Running or cracking paint is usually the result of holding your paint sprayer too close to the surface that you’re painting, leading to an uneven and unattractive finish.

Just make sure that you turn the arrow back to the spray position before you start working again. If none of these fixes work, your suction tube may be the problem.

Also make sure that you didn’t accidentally blow a fuse. If you are not using a reversible tip, remove the tip with the Graco tool or a crescent wrench.

View All DIY Series. In most causes, fluttering occurs when the tip of your spray gun has not been tightened enough. If you have ever tried rolling an acoustic "popcorn" ceiling, or painted the exterior of your home with a roller and brush, you can appreciate how efficient painting with an airless sprayer can be. Also turn the pressure control knob to a higher setting; sometimes the motor will not kick on if the pressure is too low. Finally, consider the materials that you’re using. Stevie Donald has been an online writer since 2004, producing articles for numerous websites and magazines. First, make sure that your tip size is the right size.

Pro Series. Tags: common problems with paint sprayersoverspraypaint gun troubleshooting, Disclaimer: is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to, This site also utilizes VigLink, a similar method of earning advertising income through various other affiliates, including eBay, Amazon’s international sites, and more. Up to 15 times faster, in fact!

First, make sure that your paint sprayer is plugged in and switched on. It's time to put down your paint brushes and rollers and pick up a Graco paint sprayer.

Make sure that you have sufficient voltage in your power supply to power your paint sprayer. If adjusting the pressure and tip don’t help, then perhaps an airless paint sprayer isn’t the right choice for your project.

Even the best spray gun will require maintenance, troubleshooting and repairs.

The sprayer should build pressure within 30 seconds.


Ensure your paint sprayer always operates at maximum performance—choose genuine Graco parts. If this happens, you’ll have to be patient. There are a few common causes. Next, consider the sizes of your tip and spray fan.

A tip that’s too large will cause issues with your painting pattern. If this doesn't work, put the thin plastic primer tube in a bucket and release the prime spray valve lever on the side of the unit by pushing it down. After that, make sure that your filters and strainers are clean.

Consider investing in an air spray gun instead. When spraying stain, we recommend you use a spray tip that restricts the amount of paint coming out of the front, such as a 311 or 413 spray tip. If you want to get the most out of your sprayer, then you should know how to fix the most common problems you’ll encounter with your new tool. Believe it or not, many people forget this step.

In most cases, simply making sure that your sprayer is getting proper electrical power should be enough to fix this problem. Tap the metal housing attached to the pickup tube firmly with a hammer.

Pull starter rope 3 or 4 times. Your inlet valve check fault may also be stuck – again, use the eraser end of a pencil to nudge it. They’re more efficient, provide a higher-quality finish and get the job done much faster than conventional painting methods.

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