Service manual
SOI 12.06 FV 14/43 599 37 42-75
OPERATION SEQUENCE
ON/OFF TIME RATIO
In dual cooking, the magnetron operate within a 48
second time base. The following table is the ON / OFF
time ratio at each power output of the magnetron.
POWER OUTPUT ON TIME OFF TIME
100% 48 sec. 0 sec.
70% 36 sec. 12 sec.
50% 26 sec. 22 sec.
30% 16 sec. 32 sec.
10% 8 sec. 40 sec.
AUTOMATIC COOKING
Automatic cooking functions automatically work out the
correct cooking mode and cooking time and/or cooking
temperature. They will cook according to the special
cooking sequence.
POWER OUTPUT REDUCTION
After the same cooking mode is carried out for more
than the basis cooking time, the power output is
automatically reduced by turning the control relays on
and off intermittently, as shown in the table below. This
is to protect the oven door against temperature rising.
Cooking mode
Basis cooking
time (minutes)
Reduced power
Output (1%)
Time base
(seconds)
Microwave (100%) 20 70 32
Grill 15 70 48
Convection No reduction
40 (Micro.) 50 48 Micro. (70%)
+ Grill
15 (Grill) 50 48
15 (Micro.) 50 48 Micro. (100%)
+ Grill
15 (Grill) 50 48
40 (Micro.) 50 48
D
U
A
L
Micro. (70%)
+ Conv.
No reduction
NOTE:
1. If the multiple sequence cooking is carried out in
same mode, the basis cooking time is calculated
from the first.
2. Even if the cooking is stopped by the STOP button
or opening the door, the basis cooking time is
calculated from the first.
3. If the same cooking mode is repeated within 1
and 15 seconds, the basis cooking time is
calculated from the first.
4. If the same menu of Automatic Cooking is repeated
within 1 minute and 15 seconds, the
power output of the microwave or the grill will be
reduced to 70% after 20 minutes when the oven
is started at first.
FAN MOTOR OPERATION (in Grill,
Convection and Dual mode)
When oven is stopped during cooking, or after the
cooking is completed, the fan motor will operate if the
oven cavità temperature is above 120°C, and the fan
motor will stop if the oven cavity temperature is below
105°C.
CONVECTION MOTOR OPERATION
If the temperature of oven cavity is higher than 120°C
after and when operated by 250°C convection cooking,
250°C dual convection cooking or 250°C preheating,
the convection motor will operate for maximum 1
minute until the oven cavity temperature drops below
105°C.