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11.0
Changing Components – Page 27
11.9 Gas Valve
(Fig. 56)
1. Remove the burner from the base tray as described in
11.5.
2. Disengage the plug connecting the bulb to the control
unit.
3. Disengage the motor drive cable from the flicker effect
unit.
4. Disconnect the electrode lead from the top right hand
side of the control box. Remove the electrode and lead
from the unit.
5. Undo and remove the locknut retaining the
thermocouple to the burner tray.
6. Undo the union nut connecting the gas feed Burner
Tray pipe to the injector.
7. Undo the two screws from the front of the burner tray
which retain the control unit and remove the burner tray.
8. Undo the gas inlet pipe and the gas feed pipe to the
injector from the gas valve.
9. Unplug the gas valve solonoid leads from the left hand
socket of the front of the control box.
10. Remove the two screws from the top of the gas valve
and remove the valve.
11. Fit the new gas valve and reassemble In reverse
order.
11.10 Control Box
(Fig. 56)
1. Remove the burner from the base tray as described in
11.5.
2. Disconnect the electrode lead from the top right hand
side of the control box. Remove the electrode and lead
from the unit.
3. Disengage the motor drive cable from the flicker effect
and the plug connecting the bulb to the control unit.
4. Undo and remove the locknut retaining the
thermocouple to the burner tray.
5. Undo the union nut connecting the gas feed pipe to the
injector.
6. Undo the two screws from the front of the burner tray
which retain the control unit and remove the burner tray.
7. Disengage the gas valve solonoid plug and the switch
plug from the front of the control box.
8. Undo the two screws holding the control box to the
base plate.
9. Fit the new control box and reassemble in reverse
order.
