Technical data

10.0Changing Components
24
10.4 Control Box
1. Disconnect the earth point.
2. Remove the control box heat shield retaining
screw and place the shield to one side (Fig. 74).
3. Disconnect all of the wiring connections from
the control box taking note of their positions
(Fig. 75).
4. Slacken the rear control box retaining screw.
5. Undo the front retaining screw and remove the
control box (Fig. 76).
6. Fit the new control box and reassemble in
reverse order.
10.5 Motorised Gas Valve (Fig. 77)
1. Undo the thermocouple nut from the front of
the motorised gas valve, and disconnect the
three gas pipes from the tap body.
2. Disconnect the motorised gas valve leads from
the control box (Fig. 75).
3. Undo the two screws holding the gas valve to
its’ bracket. Remove the valve, slackening the
gas pipes at their other connections if necessary.
4. Fit the new motorised gas valve in reverse
order.
5. Check gas soundness (leak detector).
Thermocouple
Nut
Fig. 77
Control Box
Heat Shield
Control Box
Fig. 74
Pilot Feed Pipe
Motorised Gas
Valve
Fig. 75
Control Box
Retaining Screw
Control Box
Control Box
Electrode
Lead
Thermocouple
Interrupter
Leads
Mains Input
Lead
Motorised Gas
Valve Leads
Control Panel
Lead
Fig. 76
Heat Shield
Retaining Screw