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4. TROUBLESHOOTING
4-2) Sound function
1) Sound function
1-1) To confirm that a command is inputted properly, whenever a button is pressed, a
“ding-dong” sound is produced.
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, 10 beeps are produced.
2-2) If the doors continue to remain open more than 2 minutes, 10 beeps are
produced every 1 minute.
2-3) The beeps will cease immediately when the doors are closed.
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This function is for display purpose on the floor of a show room or a store.
(Only for product sold in U.S)
1) Mode ON/OFF
1-1) To select for the Cooling Off mode, press Lighting and Freezer Temp, buttons
simultaneously for 3 seconds until a “ding-dong” sound is heard.
1-2) To cancel this mode, press the same buttons again for 3 seconds until a “ding-
dong” sound is heard.
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.
2-3) Temperature indicator moving.
2-4) Cooling Off mode is not cleared even if power is reset.
1) Self-Diagnostics during the initial Power ON
1-1) The control board performs a self diagnostics test within 1 second and checks
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 Lighting and
Energy Saver(Vacation) buttons simultaneously for 8 seconds) is acceptable.
1-4) After replacement of bad sensor or cancellation of this function, this self
diagnostics will end.
2) Self-Diagnostics during the normal operation
2-1) To select this function, press Lighting and Energy Saver(Vacation) 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.
4-3) Showroom Mode (Cooling Off Function)
4-4) Self-Diagnostics Function
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