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

Location:
The heating return filter is located within the heating return isolating valve.
Upon completion of the fault diagnostics carry out final electrical safety tests and checks as per TOPs (C6).
Part Number: GC277765


Refer to ADAPT for further information.

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