Boiler services are incredibly important in ensuring that you are safe in running your gas appliance and have reliability for the winter. Your engineer should perform a 26.9 check:
Regulation 26.9 is a section of the Gas Safety Installation and Use Regulations that provides guidance on what checks an engineer should carry out when working on an appliance. The regulation states the following.
National Gas Centre For Excellence NGCFE
“(8) No person carrying out work in relation to a gas appliance which bears an indication that it so conforms shall remove or deface the indication.
(9) Where a person performs work on a gas appliance he shall immediately thereafter examine –
(a) the effectiveness of any flue;
(b) the supply of combustion air;
(c) subject to subparagraph (ca), its operating pressure or heat input or, where necessary, both;
(ca) if it is not reasonably practicable to examine its operating pressure or heat input (or, where necessary, both), its combustion performance;1
(d) its operation so as to ensure its safe functioning,
and forthwith take all reasonably practicable steps to notify any defect to the responsible person and, where different, the owner of the premises in which the appliance is situated or, where neither is reasonably practicable, in the case of an appliance supplied with liquefied petroleum gas, the supplier of gas to the appliance, or, in any other case, the transporter.”
The checks can be easily remembered using the abbreviation FAGS, which stands for flue, air, gas and safety devices.
These checks must be carried out as a minimum when working on an appliance.
A good gas engineer will also empty and re-fill your condense trap, clean out your magnetic filter, check your expansion vessel, and visually inspect your gas meter.