Isolate Mains Power to appliance as per TOPs P4
G.C. Number 47 415 07
IMPORTANT WARNING!
For clarity diagrams depict boiler with case removed, boiler should NOT be
fired with case removed as damage to the control box may result.
Note:
If Pre-heat mode is required for testing and boiler is warm, turn off
gas and run DHW draw off to cool Pre-heat thermostat
Case removal
Combi Module
Release the securing screw at the top centre of the casing and withdraw cover.
Boiler Module
Open the controls pod door.
Release the 4 captive screws (2 at top and 2 at bottom) holding the casing.
Lift casing off the boiler and retain in a safe place.