User Manual
24
Replace the nozzles of the hob burners 
Every appliance has spare nozzles for every type 
of gas. The whole length of every nozzle is 
marked in millimetres on the nozzle. 
Before any modifications or conversion to 
a different kind of gas, you must DISCONNECT 
the cooker from the electricity supply and 
ensure that all control knobs are in the OFF 
position, and the appliance has cooled 
completely. 
 Hob burners 
•  Remove the pan support; 
•  Remove the caps and the burner crowns; 
•  Using a No 7 socket spanner unscrew the 
nozzles and replace them with those required 
for the type of gas in use (see table no. 1). 
Reassemble the parts following the same 
procedure in reverse. 
These burners do not need any primary air 
regulation.
Adjustment of minimum level for the hob 
burners 
The burner is correctly adjusted when the flame 
is stable silent and goes out without any noise. 
When changing the type of gas check that the 
minimum level is correct. The air admission is 
correct when the flame is about 4 mm in length. 
The top burners do not need adjustment of 
primary air.
Check that, turning the knob quickly from the 
maximum position to the minimum one, the flame 
does not go out. 
To adjust the minimum level: 
•  Light the burner 
•  Turn the knob to the position of the minimum 
flame; 
•  Remove the knob; 
•  Unscrew or screw the by-pass screw (on the 
right above of tap shaft) until a regular small 
flame is reached. 
•  For LPG screw completely the by-pass 
screw. 
Reassemble the parts following the same 
procedure in reverse. 
Check that, when turning the knob quickly from 
the maximum position to the minimum one, the 
flame does not go out. 
no air
correct
adjustment
excess of
air










