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Wagner Paint Sprayer Blowing Only Air: How to Fix

Is your Wagner Paint Sprayer blowing only air? In most cases, this is not a cause for concern. Issues like this are bound to happen with continuous use of the sprayer. Sometimes, the issue could be due to an error on your part or an indication that the sprayer needs some maintenance. 

Whichever it may be, we have provided a step-by-step guide on how to troubleshoot and fix the problem with the Wagner Paint Sprayer blowing only air.

wagner paint sprayer blowing only air

Wagner paint Sprayer Blowing Only Air: How to Fix

1. Check the nozzle

The nozzle in the sprayer is one of its most vital parts. This is the part that controls the flow of paint. It could cause the sprayer to blow only air rather than paint if it is not properly tightened. Make sure that it is tightened down properly and that there are no blockages or debris in the nozzle. To check the nozzle, follow these steps:

  • Turn off the sprayer and unplug it.
  • Remove the nozzle by turning it counterclockwise.
  • Inspect the nozzle for any blockages or debris. If you see any, use a needle or a small wire to gently clear the blockage.
  • Reinstall the nozzle by turning it clockwise until it is tightened down securely.

2. Check the hose

Next, inspect the hose for any kinks or blockages. The function of the hose is to carry the paint from the sprayer to the nozzle, so if it is damaged or clogged, it could prevent the paint from flowing properly leaving only air. To check the hose, follow these steps:

  • Turn off the sprayer and unplug it.
  • Inspect the hose for any kinks or twists. If you see any, gently straighten out the hose.
  • Check the hose for any visible blockages or debris. If there are any issues, you will need to use a needle or a small wire to gently clear the blockage.
  • An additional tip is to make sure that the hose is not too long or too short. If it is, it can cause pressure issues that result in the sprayer blowing only air.

3. Check the pump

If the nozzle and hose checks out, you can check the pump. The pump is needed to build up the necessary pressure to spray the paint. Ensure that the pump is properly maintained as it can be expensive to replace or fix. Make sure that the pump is properly lubricated and that all of the seals are in good condition. To check the pump, follow these steps:

  • Start by turning off the sprayer and unplug it.
  • Remove the pump according to the instructions in your sprayer’s manual.
  • Inspect the pump for any visible damage or wear. If you see any, it may be necessary to replace the pump.
  • Check that the pump is properly lubricated. If it is not, lubricate it according to the instructions in your sprayer’s manual.

4. Check the fluid inlet

The fluid inlet sucks in the paint and sends it through the sprayer. Blockages and dirt or paint residue can cause the hinder the function of the fluid inlet leaving your sprayer blowing only air. To check the fluid inlet, follow these steps:

  • Turn off the sprayer and unplug it.
  • Take out the fluid inlet according to the instructions in your sprayer’s manual.
  • Check the fluid inlet for any blockages or debris. You can use the same needle or small wire to get rid of any blockages.
  • When done, reinstall the fluid inlet 

5. Check the pressure

Chanced are you’re dealing with a pressure issue. The Wagner sprayer can have a max operating pressure of up to 1600 PSI, however, this depends on the model, so yours might have a lower max operating pressure. To get the sprayer to work properly, ensure that the pressure is set correctly for the type of paint and material you are spraying. To check the pressure, follow these steps:

  • Check through the instructions in your sprayer’s manual to determine the correct pressure setting for your specific project.
  • Check the pressure gauge on the sprayer to ensure that it is set to the correct pressure. If it is not, adjust the pressure according to the instructions in your sprayer’s manual.

6. Check for leaks

Leaks could also pose a problem. A leak in the system causes a loss of pressure and results in the sprayer blowing only air. To check for leaks, follow these steps:

  • Ensure that the sprayer is turned off and unplugged.
  • Mix a small amount of dish soap with water in a spray bottle.
  • Spray the soapy water mixture over all of the connections and seals on the sprayer.
  • Observe the connections and seals for any bubbles, which indicate a leak.
  • If you see any bubbles, tighten the connections or replace the seals as necessary.

7. Check the intake valve

The function of the intake valve is to regulate the flow of paint into the sprayer. If the valve is damaged or not working properly, the sprayer will blow only air. To check the intake valve, follow these steps:

  • Turn off the sprayer and remove it from the power source.
  • Remove the intake valve according to the instructions in your sprayer’s manual.
  • Inspect the valve for any visible damage or wear. If you see any, it may be necessary to replace the valve.

8. Check the suction tube

The suction tube will carry the paint from the container to the sprayer. If damaged or clogged, the sprayer will not be able to dispense the paint but blow only air instead. To check the suction tube, follow these steps:

  • Turn off the sprayer and unplug it.
  • Remove the suction tube according to the instructions in your sprayer’s manual.
  • Check the tube for any visible damage or blockages. If you notice any damages, then you will have to replace the tube or clear the blockage.

9. Check the power supply

If all of the internal components of the sprayer are in good working order, it’s possible that the issue could be with the power supply. Make sure that the sprayer is plugged in and that the outlet is functioning properly. You can also try using a different outlet or extension cord to rule out any issues with the power supply.