Technical data

13.0 Changing Components
41
The control, display and fan driver boards can
be accessed on the removal of the main
electrical box cover.
1. Release the facia securing screws (
1
/
4
turn) and
hinge down the facia box.
2. Remove the screws securing the main
electrical box cover (Fig. 73) and rotate the cover
upwards to gain access.
13.16 Control Board (Fig. 73)
1. Remove the screws securing the control board
and disconnect the electrical connections noting
their positions although they are one way fitting.
2. Fit the new control board and reassemble in
reverse order.
13.17 Display Board (Fig. 73)
1. Remove control board as in 13.16.
2. Remove the screws securing the display board
and disconnect the electrical connection.
3. Fit the new display board and reassemble in
reverse order.
13.18 Fan Driver Board (Fig. 73)
1. Remove the screws securing the fan driver
board and disconnect the electrical connections
noting their positions.
2. Fit the new fan driver board and reassemble in
reverse order.
13.19 Transformer (Fig. 74)
1. Remove the transformer connection from the
control board (Fig. 73).
2. The transformer is mounted to the right of the
combustion box.
3. Remove the two transformer mounting screws
and remove the transformer.
4. Fit the new transformer and reassemble in
reverse order.
Fig. 73
Fig. 74
Main Electrical
Box Cover
Control
Board
Transformer
connected here
Transformer
Fan Driver
Board
Display
Board
Facia Box
Facia Securing
Screws
Main Electrical
Box Cover
Removed For
Clarity