Troubleshooting - Samsung CE979GSE Service Manual

7. Troubleshooting

7-1 Checking the Weight Sensor
7-1-1. Overview
Elevarion motor
Weight sensor
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.
Samsung Electronics
Tantable motor
5V
0V
The output frequency of the basic condition (when 0
point adjusted) is between 3150 and 3650Hz.
Shaft
( Output Wave )
7-1