Adjust, Service, Repair or Replace as necessary
Isolate Mains Power to appliance as per TOPs P4
Isolate Water and Gas as appropriate

Location:
The electrode furthest to the left fitted within the combustion chamber in the centre of the appliance.
Upon completion of the fault diagnostics carry out final electrical safety tests and checks as per TOPs (C6).
Part Number: GC277788


Refer to ADAPT for further information.

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