Boiler Annual Safety Check and Service

A professional boiler annual safety check and boiler service ensures your boiler is functioning properly. A boiler service is important to ensure the boiler is working to the specifications designed by the boiler manufacturer. This will help prolong the life of the boiler as well as reduce the risk of faults and expensive repairs down the line.

A detailed service will include inspection of the gas pipe work, ventilation, clearances etc. The system is then inspected, cleaned and reassembled. The operation of the boiler functions are then inspected for safe and correct operation.

Boiler Annual Service Procedure

This is a typical check list for an annual boiler service. Preliminary examination:

• Boiler location - is it suitable?
• Any visual damage on the boiler?
• Correct operation – check that the boiler operates correctly, including consumer controls and safety devices
• Flame – is it burning as per the spec?
• Electrical wiring – check they complies with electrical regulations
• Near environment – ensure clearances from combustible materials
• Gas supply pipe work – ensure correct installation and clearances
• Room ventilation – ensure sufficient ventilation
• Full service procedure:
• Main boiler burners – remove, clean and inspect condition
• Boiler gas injectors – clean and inspect conditions
• Pilot assembly – dismantle and clean pilot assembly (including gas injector)
• Heat exchanger – clean and check condition
• Check boiler parts for gas leaks (case and seals)
• Thermocouple – check condition
• Measure gas pressure and flow rate, and adjust if necessary
• Flue - inspect for faults
• Assemble all boiler parts back and test operation

Manufacturers' specific instructions may have more steps to follow. A proper boiler service takes at least an hour. A gas fire, although appearing to be a simpler appliance, usually takes around the same amount of time because the flue/chimney system needs especially thorough checking.