Isolate Mains Power to appliance as per TOPs P4
G.C. Number 47 920 01
Case removal
Lower front (control) panel
This is hinged along its lower edge, and is designed to open to a horizontal position - it being held in this position by a plastic restraining strap. Whilst holding the panel in the closed position, disengage the two 'quarter turn' panel fasteners by turning both of the recessed screw heads - located at upper right and left hand corners of the panel - a quarter turn towards the centre of the boiler, using a flat bladed screwdriver.
Carefully allow the panel to open on its hinge until horizontal.
Upper front panel
Having opened the lower front panel, locate and disconnect the earth lead from the bottom edge of the upper panel. Locate both panel retaining catches - at the bottom edge of the upper front panel.
Pull lever of each catch forwards, and ease bottom of panel forwards until catch is disengaged from slot in bottom flange of panel. With both catches disengaged pull bottom edge of panel out, approximately 30 mm (to clear rubber seal of sealed chamber) and lift panel upwards and off the two retaining lugs at the top of the boiler.