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Introduction and Problem Identification

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6:04
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How To Fix An Airless Sprayer That Is Not Priming.

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What happens here

The video begins with an introduction to the common problem of an airless sprayer not priming, specifically demonstrated on a Graco 440i model. The presenter explains that this issue often arises from paint buildup or debris (like grass, leaves, or tiny rocks) getting into the lower fluid section and obstructing the small ball check valve, preventing proper priming. The primary indicator is the sprayer attempting to prime but producing little to no paint from the prime hose.

Goal: Understand the cause and symptoms of an airless sprayer not priming.

Tools and materials

  • Airless Paint Sprayer Graco — The equipment to be diagnosed and fixed
  • Intake Hose — Part of the sprayer's fluid path that can accumulate debris

What they say

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This is Chris the Idaho Painter. In this video, we're going to go over an issue you may run into with your airless sprayers not priming. And I got a 440i eye right here that we've run into the issue with it. And we we run into this issue quite a few times with all of our sprayers. And and the sprayer will eventually not prime itself. And if it won't prime, it won't spray. And over time, you're going to get a a buildup of paint inside this hose, or you may suck up a piece of grass or a leaf or a little tiny rock or something that might get by your rock guard, and it's going to come up inside your lower fluid section, and it could get hung up. And there's a little tiny ball inside there, and it could get hung up in the ball. And and what we see quite a bit is paint breaking free from this hose that eventually settles in this hose over time. And it builds up. It'll eventually break free. it'll try to pass that ball and it'll get stuck in that ball and and then the the sprayer itself won't prime. It'll just sit there and and attempt to prime and no paint or very little paint will come out of your prime hose and it won't prime and won't get ready to paint. So, quick quick and simple fix. And to determine whether that's the problem is just removing this hose,

Auto-generated from the video audio.