When is it safe to perform maintenance on gas appliances?

Performing maintenance on gas appliances should always be done only after shutting off the gas supply. This practice ensures that there is no risk of gas leakage, which could lead to dangerous situations such as explosions, fires, or carbon monoxide poisoning.

Shutting off the gas supply removes the potential for any gas to be inadvertently released while maintenance is being conducted. It is a critical safety step that should never be overlooked, regardless of the type of maintenance or repairs being performed. Ensuring that the appliance is completely deactivated eliminates the risk of igniting any residual gas that may be present.

The other scenarios, such as performing maintenance after the appliance has been running for an hour, when it is still warm, or whenever convenient, do not prioritize safety and can expose a technician to hazardous conditions. Always ensuring a safe environment before starting work is fundamental in maintaining safety standards in handling gas appliances.