What situation causes gas pilot flames to be noisy, lifting, and blowing?

When gas pilot flames exhibit noisy, lifting, and blowing characteristics, it indicates an issue with the pilot pressure being set too high. When the pressure exceeds the optimal level, the gas flows too aggressively, stirring the flame and causing it to lift off the burner surface. This turbulence not only generates a loud noise but also results in an unstable flame that can extinguish easily due to being blown away from the pilot orifice.

In a properly functioning system, the pilot pressure must be balanced to ensure a steady and stable flame. Excessive pressure disrupts this balance, making it difficult for the flame to maintain its intended form and function. Additionally, improper venting or dirty components may contribute to flame instability, but the direct cause of noisy and uncontrolled flames in this scenario is linked to the high setting of pilot pressure.