How to fix 3M Paint Sprayer when there is no paint flow?
- CCassandra AustinAug 18, 2025
If your 3M Paint Sprayer isn't spraying paint, several issues could be the cause. First, the fluid nozzle might be clogged, so try cleaning it. Another reason could be a loss of fluid pressure, indicating you might be out of paint. Additionally, a clogged air passage or a restriction in the material hose could be the culprit; clean both with solvent. Finally, a clogged check valve could be the reason, in which case you should replace it.