What is a common fault that can lead to gas appliance failure?

A common fault that can lead to gas appliance failure is clogged burners or restricted airflow. This issue directly impacts the combustion process necessary for proper appliance operation. When burners become clogged, they cannot deliver the appropriate mix of gas and air, which can lead to incomplete combustion. This not only reduces the appliance's efficiency but can also create dangerous conditions, such as the production of carbon monoxide, which is a hazardous byproduct of burning gas.

Additionally, restricted airflow can exacerbate the problem, preventing the appliance from drawing in enough oxygen needed for efficient combustion. This further compromises the safety and functionality of the gas appliance, potentially leading to overheating or ignition problems. Regular maintenance to ensure that burners are clean and that there is adequate airflow is crucial for the safe and efficient operation of gas appliances.