29
Flame correct
Flame faulty in
primary air
Flame with excess
primary air
8 - Regulating of the oven minimum
This adjustment is for the oven burner only (as the grill burner is 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
about a half turn the screw by-pass “G’, passing through the front panel hole (fig. 34)
– fit the knob and let the oven heat for 10 minutes, then take the knob to position 130
allowing the thermostat 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.
Fig. 34
G
Flame Flame Flame
faulty in correct with excess
primary air primary air
long, yellow clear short and sharp
and interior blue too blue interior
trembling cone cone tending to
detach
CAUSE
air regulating correct air regulating
tube, too distance of tube, too
closed the tube open
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