Internal seal ring damage or breakage. Replacement of the seal ring is necessary.

Possible Causes:1.Insufficient paint in the gun cup, requiring a refill.

Possible Causes:1.Blocked or damaged air cap vents.

Possible Causes:1.Blocked or damaged air cap vents.

Maintaining Stable and Suitable Air Pressure

1.We only provide repair services for genuine DeVILBISS original spray guns and spraying equipment. Users can verify authenticity