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Regulating of the oven minimum
Considering that in the minimum position the flame must have a length of about 4 mm and must remain lit
even with a rapid shift from the maximum position to that of minimum.
To be effected only for the oven burner (as the grill burner only has a fixed input) operating on the thermostat
as follows:
•
light the oven taking the knob to Max. position.
•
remove the knob and by a thin screwdriver (3 mm section - 100 mm long) unscrew of about a half turn
the screw by-pass, passing through the front panel hole (fig. 55)
•
fit the knob and let the oven heat for 10 minutes, then take the knob to position 130 allowing the ther-
mostat to work under by-pass.
•
after further removal of the knob, stop slowly the screw by-pass G (being careful not to turn the knob rod)
until the flame reaches 3-4 mm high.
N.B. For LPG the by-pass screw must be fixed thoroughly.
Flame faulty
in primary air
long, yellow
clear interior
and trembling
air regulating
correct distan-
tube, too
ce of the tube
closed
44
Flame correct
Flame faulty in
primary air
Flame with exces s
primary air
Flame with
Flame
excess
correct
primary air
short and sharp
too blue interior
blue cone
cone tending to
detach
CAUSE
air regulating
tube, too
open
Fig. 55
G
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