Isolate Mains Power to appliance as per TOPs P4
G.C. Number 47 311 14
Case removal
Front panel removal - Remove Front Panel (1) by lifting upwards and pulling forwards.
Inner casing cover (combustion chamber) - Unscrew the four screws (2) securing the cover to the casing and lift off.
Facia panel - Unscrew the two upper screws (3) and lower the Facia taking care not to damage the Pressure Gauge capillary tube or electrical connections.