Full Service
For reasons of safety and economy, it is recommended that the boiler is serviced annually. Servicing must be
performed by a competent person in accordance with BS 7967-4.
After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist, located on the
inside back page of the installation & servicing instructions.
Where a full service is required the following steps must be followed:
Carry out the actions as described in the interim service section.
Fan unit and burner cassette
• Remove the Velcro from the silencer and remove the silencer (
1
)
• Unscrew the coupling (
2
) of the gas block and the coupling on the venturi (
3
) and remove the gas line (
4
)
1
4
3
2
1
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