What is one major sign that a combustion appliance needs servicing?

Poor ignition or operational performance is a significant indicator that a combustion appliance requires servicing. This issue often signifies that there are underlying problems affecting the appliance's ability to function effectively. Poor ignition may result from inadequate gas supply, malfunctioning igniters, or blockages in the combustion chamber, leading to incomplete combustion and lower efficiency.

When a combustion appliance fails to ignite properly or struggles to maintain a steady operation, it can not only compromise performance but also pose safety risks, including the potential for dangerous carbon monoxide buildup. Regular servicing can help identify and rectify ignition issues, ensuring the appliance operates safely and efficiently.

While the other signs listed can also indicate the need for servicing—excessive noise may point to mechanical issues, increased fuel consumption suggests inefficiency, and visible rust or corrosion can indicate deterioration—poor ignition or operational performance is often the first and most immediate sign that maintenance is urgently needed to ensure the safety and functionality of the appliance.