During a recent commercial gas maintenance job, Alliance CFM engineer Shane identified abnormal combustion readings that required further investigation.
Checks identified the gas train as requiring attention. Shane carried out a thorough clean before completing further testing, which confirmed the readings had returned to the required parameters.
Investigating Abnormal Combustion Readings
Combustion testing provides engineers with important information about how a gas fired system is performing. Readings outside the expected range can indicate that part of the system requires closer inspection, helping us determine the appropriate course of action based on the results.
In this instance, the testing provided a clear indication that further attention was needed and enabled Shane to take a targeted approach to resolving the issue.
What Is a Gas Train?
A gas train is a series of components used to control and regulate the gas supply to a burner. Depending on the installation, this can include valves, regulators and associated controls.
The exact arrangement varies between systems, which is why inspection, testing and maintenance should be based on the specific installation and the results recorded by the engineer.
The Value of Combustion Testing
Combustion analysis is an important diagnostic tool when servicing and maintaining commercial gas systems. Rather than relying solely on visible signs of a problem, engineers can use measured results to assess combustion performance and identify when further investigation is required.
Testing after maintenance is equally important. It provides measurable evidence of how the system is performing following the work and in this case, confirmed that cleaning the gas train had addressed the abnormal readings.
Commercial Gas Servicing and Maintenance
Alliance CFM provides commercial gas servicing, maintenance and fault finding for businesses and commercial properties. Our engineers use testing and system checks to identify issues, determine what requires attention and carry out the appropriate maintenance or repair.
If you require commercial gas servicing or maintenance, call 0118 230 1268 or email contact@alliancecfm.co.uk to speak to our team.



