Checks and tests to ensure the appliance is safe to operate, for example:

• It is correctly set and adjusted to ensure the gas is burning correctly.
• It is of a type suitable for the room in which it is located.
• It is physically stable, securely fitted and properly connected to the gas pipework.
• There is an adequate and permanent air supply suitable for the appliance type installed.
• Any flues or chimneys are operating correctly.
• All safety devices function correctly.
• Specific checks, for inspection and/or cleaning of the appliance as specified and detailed in the appliance manufacturer’s instructions. This may include:
• If appropriate, an analysis of the combustion exhaust gases to ensure the appliance is burning the gas safely.
• A check of the condition of the appliance including (but not limited to): the effectiveness of any seals, gaskets, the cleanliness of heat exchangers etc. and checking for any signs of heat or other distress.

This is not an exhaustive list and servicing requirements will vary across appliance types and models.

Note: Some appliance servicing regimes provide an interim performance check (annual) to be used in order to determine the degree of dismantling the appliance and the level of servicing required.