All of the following may cause a gas pilot to go out during system use EXCEPT?

The scenario presented involves a gas pilot light, which is a small flame used to ignite the main burner in gas appliances. Understanding the factors that can affect the operation of a pilot light is crucial for diagnosing and troubleshooting gas systems.

High pilot thermocouple voltage is not a typical cause of a gas pilot going out. In fact, a thermocouple generates a small voltage when it is heated by the pilot flame, and this voltage is used to keep the gas valve open. If the voltage is sufficiently high, it signifies that the pilot flame is present and functioning correctly. Therefore, having a high voltage from the thermocouple indicates that the pilot is maintaining adequate heat; it does not contribute to extinguishing the pilot.

In contrast, low gas supply can result in insufficient fuel for the pilot to remain lit, while wind can blow out a pilot flame if it's not adequately shielded. Additionally, a dirty pilot assembly can disrupt the gas flow and lead to an unstable flame, which might cause the pilot to go out. Each of these other factors directly interferes with the pilot's ability to stay lit, making high pilot thermocouple voltage the only element in the list that does not result in the pilot going out.