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11.0
Changing Components – Page 26
11.7 Electrode
1. Disconnect the electrode lead from the top right hand
side of the control box.
2. Undo the screw retaining the electrode to the burner
tray and withdraw (Fig. 51).
3. Fit the new electrode and re-assemble in reverse order.
Check that the spark gap is between 2.5mm and 4.0mm
(Fig. 52).
11.8 Thermocouple
1. Remove the burner as described in section 11.5.
2. Undo and remove the locknut holding the thermocouple
to the burner tray (Fig. 53).
3. Undo the thermocouple nut from the right hand side of
the gas valve (Fig. 55).
4. Disconnect the two interrupter leads from the rear of the
control box and withdraw the thermocouple from the base
tray.
5. Shape the new thermocouple to the existing
thermocouple and fit new thermocouple, reassemble in
reverse order of dismantling ensuring free movement of
motor drive cable.
