Although you have invested in one of the most respected paint sprayer brands on the market, you are bound to run into some trouble.
Even the best, most intuitive tools can run into problems. It’s not enough to just know how to use a Wagner paint sprayer, you have to know how to work through the kinks.
As you use it through the years, you may start to notice hiccups that go beyond just refining your painting technique.
Eventually, your spray gun is going to need some general maintenance. It may be tempting to throw out a tool that starts to fail.
However, a Wagner paint sprayer is a significant investment and you owe it to yourself to fix it before heading out to buy a replacement.
If you find you can’t get Wagner paint sprayer fixed and need a replacement, here are our top 3 picks for 2020:
This article is a basic guide to Wagner paint sprayer troubleshooting.
These tools are meant to last, you just need to know the basics of why your Wagner paint sprayer is not spraying and you can normally fix them yourself.
1. Wagner Paint Sprayer Not Spraying
The most basic and fundamental problem of all is when the paint sprayer won t spray. It is the worst-case scenario but may also be the easiest to fix. The reasons why a spray gun can’t do the one thing it was specifically designed to do are numerous.
First, check your prime/spray knob.
Make sure it is actually set to spray and that the unit is on level ground. This is the equivalent of plugging in and pushing the on-button. It’s easy to forget, we’ve all been there.
If this doesn’t work, check the spray tip.
It may be set to a default position like “clean,” which purposefully turns off the sprayer function. The spray tip could also be clogged. In which case, you’ll want thoroughly to wash it.
Lastly, it may be that your spray gun filter is dirty.
You should be able to easily remove it based on instructions from the user-manual and then clean it with soap and warm water. If it’s particularly filthy, an oil or mineral-based cleaner will work wonders.
These are the most common fixes for a Wagner spray gun not spraying.
2. Leaking Paint
This is one of the most irritating problems that can get out of hand fast. If it is leaking, take off the spray tip and check the atomizer valve and tip washer. If they are loose, tighten them up before putting the tip back.
If the tip itself is leaking this could be a different problem altogether. It is important to keep in mind that a little leakage is normal. This should only be when the unit is running and just a little bit at a time.
If it is a problematic leak, check up on the gun seal. They need to be periodically replaced to prevent leakage.
However, if the sprayer or seal is brand-new make sure it has been put together correctly. Consult the owner’s manual if your model required assembly before use and make doubly sure that every part is where it should be.
If the unit came preassembled, then contact Wagner for advice. If worse comes to worst, then they should offer to fix it at a service center or give you a refund.
3. Priming Malfunction
When your Wagner paint sprayer won’t prime there are a few solutions to the problem.
It is entirely possible that the priming or spraying valve is clogged with old material and gunk. If that’s the case, you might have to contact Wagner to figure out how to clean the valves correctly.
If it’s not the prime or sprayer valve, it could be either the outlet or inlet valves. These can be unblocked by using the filter tab. If that doesn’t get rid of all the excess materials and junk, then clean both valves thoroughly.
Finally, in all cases, keep your unit on flat ground. The sprayer simply doesn’t work well or at all when on uneven, rough surfaces.
4. Air in the Spray
Every so often, you can be in the middle of a perfect coat and suddenly air belches out of the sprayer and ruins all that careful work on your freshly painted interior walls.
Check the refilling instructions for your specific Wagner model and be sure to not overfill the model. This will create a whole different set of problems.
5. Lack of Pressure
If your unit won’t build pressure and has a sudden fall in pressure it can be fixed in a number of ways. First, check and clean your inlet valve. Wash all its components and consider replacing any that look worn or damaged.
The same should be done for the outlet valve. Cleaning can be done with warm water, soap, and latex-based solutions.
If you have an airless paint sprayer, the spray tip may be clogged which can significantly reduce pressure. If so, remove and clean it. If it’s old, it may need to be replaced entirely. We have a dedicated article on how to clean an airless sprayer.
If you are using heavy paints like exterior paints, this can completely compromise pressure. In this case, use an appropriate thinner and mix to an exact ratio for the best results.
Lastly, the filter may be backed-up with paint and old material. Clean or replace it to fix pressure issues.
A lot of people in the comments are mentioning problems that can only really be fixed by Wagner themselves or an official service repair center.
Here’s a link to the official Wagner service center finder so you can find you nearest one: https://www.wagnerspraytech.com/support/find-a-service-center/
Wagner sprayers CAN last a lifetime. Nevertheless, they need care and maintenance to function properly. It is important to pay a little extra attention after every project to clean and examine it for wear and tear and we hope this blog on airless paint sprayer troubleshooting has helped you to keep yours going for a lifetime.
Doing this can significantly extend the lifespan of your unit and save you a whole lot of trouble later with Wagner paint sprayer problems.
Once again, here’s our top 3 favorites: