During your service, the engineer will check that your boiler is in good working condition, as well as testing the safety and efficiency of your system. Oil boiler servicing usually takes around one hour, during this time the engineer will:

• Visually inspect the boiler and all associated pipes or areas (including your oil tank and supply pipe), to make sure that they comply with current safety regulations.

• Inspect and clean out the flue.

• Replace the boiler nozzle.

• Check for water in your oil tank.

• Use a flue gas analyser to check combustion.

• Check the supply pipe for any signs of leakage.

• Remove the boiler casing and clean internal components (like the heat exchanger and burner).

• Test all safety systems to make sure that they are functioning correctly (this includes any thermostats, pressure relief valves and burner lockout devices).

• Ask if you have experienced any issues with the boiler.

• Turn the boiler on to check that it is working correctly.

Once your service is complete the engineer will give you an OFTEC CD/11 form which lists everything that has been done as part of the service.