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y Lower the control box.
y Unscrew earth lead.
y Unscrew four fixing screws from cover plate. Refer to
fig. 56.
y Prise off cover plate.
y Pull off transformer.
y Remove pcb holder.
y Remove the pcb control board.
Fig. 56
Fuses
y Remove the connections covers. Refer to fig. 24,
25.
The fuses are located adjacent to the mains connector
block and connector ST18. Refer to fig. 4.
Fuse, item 312, is only replaceable by removing the
pcb.
Spare fuses are fixed to the connections cover.
A fuse pack is available: Part number 8 744 503 010 0.
6 720 610 596 GB (01.07)
8.3.2
Fan Assembly
Fig. 57
y Switch off the appliance.
y Disconnect the appliance from the power supply.
y Undo lower pipe union on gas pipe (1.). Refer to
fig. 57.
y Remove fan lead and earth connector (2.). The earth
connector has a positive clip fixing.
y Remove fixing screws attaching fan to the burner
cover (3.).
y Remove fan together with gas pipe and mixer unit.
y Separate the fan from the pipe and mixer unit by
twisting the mixer unit to release it (4.).
Maintenance
37
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