9-12) Sound Function; 9-13) Exhibition Function; 9-14) Self-Diagnostics Function; 9-15) Load Operation Check Function - Samsung RS21 Service Manual

Operation Function

9-12) Sound Function

1) Sound function
1-1) To make sure a command input, whenever a button is pressed, a "ding-dong" sounds.
1-2) When two or more buttons are pressed simultaneously or if a wrong button is pressed, there is no sound.
2) Door Open Alarm
2-1) When the doors remain open for 2 minutes, there are 10 times beeps.
2-2) If the doors continue to remain open more than 2 minutes, the additional 10 beeps interval will change to 1 minute.
2-3) The beeps will cease immediately when the doors are closed.

9-13) Exhibition Function

G This function is for a display purpose on the floor of show room or store.
1) Mode ON/OFF
1-1) For the exhibition mode, press Power Freeze and Freezer Temp. buttons simultaneously for 8 seconds until a
"ding-dong" sounds.
1-2) Press the same time buttons again for 8 seconds to cancel this mode put with a "ding-dong" sound.
2) Operation
2-1) Most of the system function except the compressor operation are working properly.
2-2) There is no defrost cycle in this mode.

9-14) Self-Diagnostics Function

1) Self-Diagnostics in the initial Power ON
1-1)The control board performs a self diagnostics test within 1 second and check out the temperature sensors abilities.
1-2) If a sensor failure occurs, a corresponding LED segment will blink with a beep.
1-3) When a LED segment blinks, only the cancellation function (Press Power Freeze and Power Cool buttons
simultaneously for 8 seconds) is acceptable.
1-4) After a replacement of bad sensor or a cancellation of this function, this self diagnostics will end.
2) Self-Diagnostics in the normal operation
2-1) To select this function, press Power Freeze and Power Cool buttons simultaneously for 8 seconds with an audible
tone.
2-2) In the self diagnostic mode, only corresponding LED segments will be illuminated (see the check list on the next
page)
2-3) After a 30 second illumination of error signal, the system will return to the normal operation.
37