Samsung CE979 Troubleshooting

7-1-1. Overview

7-1-2. Operation

1. If the weight of the food is less than 1.5Kg (including the cooker), the rotating dish automatically
moves to the optimum location by the elevation motor.

(If the weight is more than 1.5Kg the cooking is done in the basic location)

2. When defrosting, the weight sensor detects the weight and moves the food to the appropriate
height . (The elevation operates when the weight is less thon1.0Kg or less (including the dish)).

3. When reheating food 700g or less (including the dish), it swings once and then cookis in the basic
location. (If the weight is 700g the cooking is done in the basic location)

4. Manual cooking is done in the basic location with only the rotating motor operating.

(Maximum of 4Kg including the dish if the weight exceeds 4kg, an ÒE5Ó error occurs.)

7-1-3. Operating Principle of the Height Sensor

The weight sensor converts the weight of the food into a series of pulses that are compared to
the"zero point" wavefrom. This frequency difference determines the cooking time.

7. Troubleshooting

7-1Samsung Electronics

7-1 Checking the Weight Sensor

Tantable motor

Elevarion motor

( Output Wave )

The output frequency of the basic condition (when 0
point adjusted) is between 3150 and 3650Hz.

5V

0V

Shaft

Weight sensor

Samsung Electronics7-2

Troubleshooting

7-1-4. Zero point and Inclination Adjustment

1. Turn the power on again and set time initial condition to Ò8888Ó.

2. Put a dish inside the cooking space.

3. Press the sensor defrost( ) and power level/more,less( ) keys simultaneously until Ò0000Óis
displayed (about 5 seconds).At this time lamp and the rotating dish motor are on.

4. After 10 seconds, A normal neading is between 3150 and 3650.

5. Put the 1Kg standard weight at the center of the glass tray and close the door.
(When setting the 1Kg weight, put the metal rack, roasting spit, glass bowl and two skewers on the
glass tray. Then do the zero point adjustement.)

6. Press the sensor reheat( ) and power level/more,less( ) keys simultaneovsly until the Ò1111Óis
displayed. (about 5 seconds). At this time lamp and the rotating dish motor are on.

7. After 10 seconds, A normal reading is between 0350 and 0650.

8. Press the cancel key to complete the adjustment.

7-1-5. Error codes

(Metal Rack)

(roasting spitspit) (two skewers) (glass bowl)

Error indication Cause of occurrence Management method Remarks

E0 Gas sensor open/short Check the connection and Automatic

(sensor value cooking reheating reheating

between 6 and 211) Put the power switch again and

and use it after 10 minutes.

E1 Exceeds of T1 time limit First press the cancel key and Automatic

(gas sensor) check if the food is positiotes reheating

E4 Problem with the weight Exchange the weight sensor

sensor (Output frequency=0Hz) Check the wire connection

E5 Excess of maximum weight Cook within 4Kg

(The total weight exceeded

4Kg)

E6 Excess of maximum allowed When cooking 300g or less,

time with maximum load cook within 10minutes.

(When cooking food that
weight less tman 300g the
maximum time is 10 minutes.)

E8 No tray (Occurs if oven is Install the rotating dish

operated without the rotating
dish.)

E10 Problen with the EEPROM Replace the PCB assy

Samsung Electronics 7-3

Troubleshooting

7-1-6. Hidden key

1. Check the gas sensor : Press the sensor defrost and sensor reheat keys simultaneovsly.
(Display : Between 5 and 210).

2. Child lock function : Press the cancel key for 3 seconds

(the function is executed after the buzzer sounds). To ondo the child lock,
press the cancel key for 3 seconds.

3. Cooking completion remind function : If the food is not removed after cooking,

the buzzer sounds every minute.

7-1-7. Precautions

1. Do not apply heavy load or pressure on the rotating dish

(The elevation and the weight sensor directly contact the rotating dish).
Putting food that exceeds 4kg(Total) can damage the weight sensor.

2. Use only genuine replacements that fit the model(C.E., rotating dish and supporter).

3. When food exceeding 300g(Total) is put on the rotating dish, the oven operates for only 10 minutes.

(Error E6 occwrs.)

7-1-8. Reppacing Parts

1. Discharge the capacitor for about 5 to 6 minutes after cutting the power, and then continue the work.

2. Do not damage the coating on the wires.

3. When removing the wire the terminal, hold the positive lock case with the finger and assemble it.

Otherwise use a tool (such as long nose pliers)

4. If you remove the tie during servicing, do not damage the wire. Adjust and arrange the wire and

tie(heat proof onsulated tie) after the repairs have been completed.