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R899(WH)

5 – 3

3. The relay RY3 is energized and the main supply voltage is applied

to the top grill heating element.

4. The relay RY2 is energized and the microwave energy is generated

by magnetron.

5. Now, the food is cooked by microwave and top grill simultaneously.

Rotate the COOKING MODE dial to 

COMBI 3 setting. And enter

the desired cooking time by rotating the TIME/WEIGHT dial. And press
MICROWAVE POWER LEVEL button to set the desired microwave
power. When the START button is pressed, the following operations
occur:

1. The numbers on the digital readout start the count down to zero.

2. The oven lamp, cooling fan motor and turntable motor are ener-

gized.

3. The relay RY4 is energized and the main supply voltage is applied

to the bottom grill heating element.

4. The relay RY2 is energized and the microwave energy is generated

by magnetron.

5. Now, the food is cooked by microwave and bottom grill simulta-

neously.

In grill cooking, convection cooking or combi cooking, the top heater,
bottom heater or magnetron operate within a 54 second time base.
The following table is the ON / OFF time ratio at each power output of
the top heaters, bottom heater or magnetron.

The magnetron, top or bottom heating elements, the fan motor or the convection motor will operate in accordance with following specification.

100%

54 sec.

0 sec.

90%

49 sec.

5 sec.

80%

45 sec.

9 sec.

70%

40 sec.

14 sec.

60%

36 sec.

18 sec.

50%

29 sec.

25 sec.

40%

24 sec.

30 sec.

30%

18 sec.

36 sec.

20%

13 sec.

41 sec.

10%

9 sec.

45 sec.

MICROWAVE (100%) 
SINGLE OPERATION

Microwave

100% 20min, then 70%

TOP GRILL (100%) 
SINGLE OPERATION

Top heater

100% 15min, then 50%

BOTTOM GRILL (100%) 
SINGLE OPERATION

Bottom heater

100% 15min, then 50%

TOP(100%)/BOTTOM(100%)
COMBI OPERATION

Top heater

100% 6min then 70% and 70% 9min then 50%

Bottom heater

100% 6min then 70% and 70% 9min then 50%

MICRO(100%)/TOP GRILL(100%)
COMBI OPERATION

Microwave

100% 20min, then 70%

Top heater

100% 15min, then 50%

MICRO(70 - 10%)/TOP GRILL(100%)
COMBI OPERATION

Microwave

-

Top heater

100% 15min, then 50%

MICRO(100%)/BOTTOM GRILL(100%)
COMBI OPERATION

Microwave

100% 20min, then 70%

Bottom heater

100% 15min, then 50%

MICRO(70 - 10%)/BOTTOM GRILL(100%)
COMBI OPERATION

Microwave

-

Bottom heater

100% 15min, then 50%

Repeat Cook

Microwave
Top heater
Bottom heater

In case same cooking mode is repeated within 1min 15sec (including stop, end), 
oven calculates total cooking time and reduce the power level.

Repeat Auto Cook

Microwave

The power level is not reduced 1 time cooking. But only in case same menu is 
repeated within 1min 15sec, the power level of micro and grill is reduced from 
100% to 70% in 20mins after starting of last cooking. (Even if the time of the last 
cooking is longer than 20mins, the power level isn't reduced on the last cooking, 
and it is reduced from the beginning of the next cooking.) However, in time calcu-
lated from the start of the 1st cooking, even if the Cook mode changed, when rep-
etition cooking of the menu with which 100% of top & bottom heaters continues 
are performed, as shown in the following table, the power down of the cooking of 
the 2nd henceforth is carried out. (The 1st cooking is not applied)

R899(WH)

5 – 4

NOTE:

✩The oven temp was checked by the thermometer when each stage is started.
If the oven temp is same or higher than 105

°C, the oven was judged as "with preheating".

When the oven temp is lower than 105

Micro and Top heating element can't be on at the same time.

PREHEAT

Cooling

60% 

CONV. (OVEN)

Cooling fan

60% 60 min. then 100%

Others

Cooling fan

100%

After cooking

Cooling fan

A cooling fan continues the rotation when Oven temperature is more than 120

°C. 

Then, it stops when it is less than 105

°C

Indication

NOW COOLING is indicated during the cooling fan movement after operation is 
finished. (It isn't indicated during a fan movement to stop on the way.)

°C, 230°C, 220°C, 200°C, 180°C, 160°C, 130°C, 100°C, 70°C, 40°C

HEATING ELEMENT 

TOP 100%
BOTTOM

100%

COOLING FAN 

60%

CONV. FAN 

0%

°C

°C

°C

°C

°C

°C

°C 100°C

°C

°C

✩WITHOUT PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

100%

90%

80%

70%

70%

60%

50%

40%

30%

20%

✩WITH PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

90%

70%

60%

50%

50%

50%

50%

40%

30%

20%

COOLING FAN

60% 60min, then 100%

CONV. FAN

100%

0%

°C

°C

°C

°C

°C

°C

°C

°C

°C

°C

✩WITHOUT PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

100%

90%

80%

70%

70%

60%

50%

40%

30%

20%

✩WITH PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

90%

70%

60%

50%

50%

50%

50%

40%

30%

20%

MICRO

10%, 30%, 50%

COOLING FAN

100%

CONV. FAN

100%

0%

R899(WH)

5 – 4

NOTE:

✩The oven temp was checked by the thermometer when each stage is started.
If the oven temp is same or higher than 105

°C, the oven was judged as "with preheating".

When the oven temp is lower than 105

Micro and Top heating element can't be on at the same time.

PREHEAT

Cooling

60% 

CONV. (OVEN)

Cooling fan

60% 60 min. then 100%

Others

Cooling fan

100%

After cooking

Cooling fan

A cooling fan continues the rotation when Oven temperature is more than 120

°C. 

Then, it stops when it is less than 105

°C

Indication

NOW COOLING is indicated during the cooling fan movement after operation is 
finished. (It isn't indicated during a fan movement to stop on the way.)

°C, 230°C, 220°C, 200°C, 180°C, 160°C, 130°C, 100°C, 70°C, 40°C

HEATING ELEMENT 

TOP 100%
BOTTOM

100%

COOLING FAN 

60%

CONV. FAN 

0%

°C

°C

°C

°C

°C

°C

°C 100°C

°C

°C

✩WITHOUT PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

100%

90%

80%

70%

70%

60%

50%

40%

30%

20%

✩WITH PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

90%

70%

60%

50%

50%

50%

50%

40%

30%

20%

COOLING FAN

60% 60min, then 100%

CONV. FAN

100%

0%

°C

°C

°C

°C

°C

°C

°C

°C

°C

°C

✩WITHOUT PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

100%

90%

80%

70%

70%

60%

50%

40%

30%

20%

✩WITH PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

90%

70%

60%

50%

50%

50%

50%

40%

30%

20%

MICRO

10%, 30%, 50%

COOLING FAN

100%

CONV. FAN

100%

0%

R899(WH)

5 – 4

NOTE:

✩The oven temp was checked by the thermometer when each stage is started.
If the oven temp is same or higher than 105

°C, the oven was judged as "with preheating".

When the oven temp is lower than 105

Micro and Top heating element can't be on at the same time.

PREHEAT

Cooling

60% 

CONV. (OVEN)

Cooling fan

60% 60 min. then 100%

Others

Cooling fan

100%

After cooking

Cooling fan

A cooling fan continues the rotation when Oven temperature is more than 120

°C. 

Then, it stops when it is less than 105

°C

Indication

NOW COOLING is indicated during the cooling fan movement after operation is 
finished. (It isn't indicated during a fan movement to stop on the way.)

°C, 230°C, 220°C, 200°C, 180°C, 160°C, 130°C, 100°C, 70°C, 40°C

HEATING ELEMENT 

TOP 100%
BOTTOM

100%

COOLING FAN 

60%

CONV. FAN 

0%

°C

°C

°C

°C

°C

°C

°C 100°C

°C

°C

✩WITHOUT PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

100%

90%

80%

70%

70%

60%

50%

40%

30%

20%

✩WITH PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

90%

70%

60%

50%

50%

50%

50%

40%

30%

20%

COOLING FAN

60% 60min, then 100%

CONV. FAN

100%

0%

°C

°C

°C

°C

°C

°C

°C

°C

°C

°C

✩WITHOUT PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

100%

90%

80%

70%

70%

60%

50%

40%

30%

20%

✩WITH PREHEATING

HEATING 
ELEMENT

TOP

50%

40%

40%

30%

20%

10%

10%

10%

10%

10%

BOTTOM

90%

70%

60%

50%

50%

50%

50%

40%

30%

20%

MICRO

10%, 30%, 50%

COOLING FAN

100%

CONV. FAN

100%

0%