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

Location:
In the outlet of the secondary heat exchanger, at the bottom of the boiler in front of the diverter valve.
Upon completion of the fault diagnostics carry out final electrical safety tests and checks as per TOPs (C6).
Part Number: GC379215


Refer to ADAPT for further information.

Please leave Feedback about this diagnosis via:
XSOL FEEDBACK FORM
Phone - 722429
or Email - Diaglab@britishgas.co.uk