9-10) Defrost Function - Samsung RS2534WW Service Manual

Operation Function
2) Water Supply function
2-1) When the ice tray is levelled again after ejecting ice, the water solenoid value will be controlled to supply water by
time check basis. (See the "Time to supply water" Table)
3) Ice production
3-1) After 50 minutes pass from the water supply, the control board will check the temperature.
3-2) If the sensor reads the temperature lower than 1℉(5℉) for more than 5 minutes, than the ice production process
is completed.
4) Test function
G In order to operate a test function, press the knob (Test Switch) for 1.5 second.
G This function can be used to check a proper working, to clean the ice tray, and to adjust the water level in the ice tray.
4-1) This function only works when the ice tray is leveled and the ice full signal is cleared.
4-2) When the water line is connected, each process such as a water supply, ejection, and leveling, can be investigated
by this button.
5) Ice off function
5-1) When the Ice off option is selected by Ice Type button, the ice making process will cease.
5-2) When the ice making process ceases, the final state will be the ice tray with supplied water.
5-3) When Cubed or Crushed option is selected again, the control board will check an accummlated time period. After
making it 50 minutes and when the ice tray temperature is acceptable, ice ejection process will begin.
6) Functions when the freezer door is open
G When the freeze door is open, all ice maker related processes will cease in order to minimize noise and to prevent ice
from dispensing.
6-1) The ice tray stops moving regardless of the position.
6-2) The water supply process remains working as usual.
6-3) If the ice tray is in the middle of ice ejecting process, close the freezer for 30 seconds and check if the tray is
leveled. If it is not leveled, it must be out of order.

9-10) Defrost Function

1) A defrost is determined based on the accumulated compressor on-time.
2) When the power is engaged for the first time, the defrost cycle for the freezer and the refrigerator will begin after 4
hours of the accumulated compressor on-time.
3) A defrost interval depends on the ambient temperature, the number of door openings, and the door open time.
4) A minimum interval is 6 hours and a maximum is 8 hours for the refrigerator, and 12 hours and 16 hours for the
freezer, respectively.
5) The defrost heater on-time is determined by the defrost sensors as follow :
Heater ON
Heater OFF
Refrigerator
Below 50℉
63℉
29
Freezer
-
50℉