Which process should take place if a leak is detected in a gas appliance system?

When a leak is detected in a gas appliance system, the most critical step is to turn off the gas supply. This immediate action helps to mitigate the risk of further gas escaping into the environment, which can lead to dangerous situations such as explosions or fires. By shutting off the gas supply, you are effectively halting any further release of gas, allowing for a safer environment to assess the situation and initiate proper repair protocols.

While reducing gas flow may seem like a temporary measure to lower the risk, it does not eliminate the potential danger posed by the leak. Additionally, while repairs are necessary for long-term safety, attempting to fix the leak before ensuring that the gas supply is off could expose individuals to significant hazards. Ignoring the leak is never a safe option, as it can lead to escalating problems, including health risks due to inhalation of gas or environmental contamination.

Turning off the gas supply is a fundamental and first response action in leak management, promoting safety and preventing potential hazards before any repair efforts can be initiated.