If a pilot light is established but goes out frequently due to being too small, which procedure would be correct to remedy this?

When a pilot light is established but goes out frequently, one potential issue is that the pilot orifice may be obstructed or dirty. Cleaning the pilot orifice can help ensure that the right amount of gas flows into the pilot flame, maintaining a stable and properly-sized flame. If the orifice is clogged or contaminated with debris, it can result in insufficient gas delivery, leading to an unstable pilot light that is prone to going out.

While increasing gas pressure could theoretically increase the size of the flame, it might not address the underlying issue of obstruction in the orifice itself and could also lead to safety hazards or improper operation. Adjusting the air shutter might affect the combustion efficiency, but if the orifice is blocked, this adjustment alone would not be effective in keeping the pilot light lit. Similarly, replacing the pilot assembly could be unnecessary if the issue can be resolved by simply cleaning the orifice, which is often a more cost-effective and simpler solution.

By focusing on cleaning the pilot orifice, you ensure that gas flow is adequate and that the pilot flame can remain stable and effective.