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Flame
faulty in
primary air
flong, yellow
and
interior blue
trembling
air regula-
ting
distance of
tube, too
closed
Adjustment of the Oven Burner Minimum
This needs to be done only for the oven burner (the grill is a fixed capacity) by acting on
the thermostat.
In the minimum position the flame must have a length of about 4 mm and must remain lit
even with a brusque passage from the maximum position to that of minimum.
The flame adjustment is done in the following way:
Turn on the oven burner by setting the thermostat knob on maximum position "240".
−
Remove the knob and unscrew the by-pass screw "G" (fig. 6.11) about three times by
−
passing a small flat screwdriver (Ø 3 mm blade, 100 mm length) through the control
panel opening.
Note: for the models with glass control panel, for easy access to the by-pass screw, it
is suggested to remove the control panel itself (fig. 6.12). To do that unscrew the two
screws on the bottom side of the control panel and then move, toward the outside, the
bottom edge of the glass until the complete extraction of the bottom fixing tongues.
Then let it slide downwards to disengage the top fixing tongues.
Re-mount the knob and let the oven heat up for about 15 minutes, then bring the knob
−
to the minimum position "130" to operate the thermostat by-pass.
After having removed the knob again and being very careful not to turn the thermostat
−
rod, slowly screw the by-pass screws "G" (fig. 6.11) until you obtain a flame of 3-4 mm
in height.
Turn off the burner and reassemble the knob.
−
N.B. For G30/G31 (LPG) the by-pass screw must be fixed thoroughly.
Fig. 6.11
Flame
Flame
with excess
correct
primary air
short and
sharp
clear
too blue
interior cone
cone
tending to
detach
CAUSE
air regula-
correct
ting
tube, too
the tube
open
G
Fig. 6.12
1
1
Flame correct
Flame faulty in
primary air
Flame with excess
primary air
3
2
2
35
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