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Airbrush Trigger Sticking Down: Clean or Repair the Right Part
Diagnose an airbrush trigger that stays down and keeps air flowing: disconnect air, inspect the valve piston, spring, and trigger slot, clean within the maker's limits, and know when cleaning is not enough.
Airbrush Only Sprays When You Release the Trigger? Check These Causes
If your airbrush only sprays when you release the trigger, the needle or trigger linkage is likely dragging or returning late. Work through the diagnostic matrix to check dried paint, spring tension and seating safely before you replace any parts.