4-1) Function For Failure Diagnosis - Samsung RF28HMEDBSR Service Manual

TROUBLESHOOTING

4-1) Function for failure diagnosis

4-1-1. Test mode (manual operation / manual defrost function)
• If Freezer Key + Lighting Key on the front of panel are pressed simultaneously for 8 seconds , it will be
changed to the test mode and all displays on the front of panel will be off.
• If any key on the front of panel is pressed within 15 seconds after the test mode, it will be operated as below
sequence : Manual operation1(FF) Manual operation2(OF r) -> manual defrost of fresh food compartments(rd)
-> manual defrost of fresh and freezer compartments(Fd) -> cancel(Display all off)
• If any key on the front of panel is not pressed within 15 seconds after the test mode, the test mode will be
canceled and it will be returned to previous mode.
1) Manual operation function
Freezer Key + Lighting Key are pressed simultaneously for 8 seconds, (displays are all off) It will be
changed to the test mode (manual operation) by pressing any key.
1-1) If any key is pressed once in test mode, blinks "FF" on the display and it indicates the refrigerator has
entered the manual operation. At this moment, buzzer beeps as an alarm.
1-2) If any key is pressed once at the manual operation1 status, OF-r will be displayed. FF and OF-r means
manual operation 1 and 2 separately. These 2 functions operate with same RPM of COMP.
1-3) If manual operation is selected, compressor will run at once without 7 minutes delay in any mode. If the
refrigerator is on the defrost cycle at the moment, defrost will be finished and manual operation will begin.
(Be careful if manual operation get started at the moment of compressor off, over load could be occurred)
1-4) If manual operation works, compressor & f-fan operate continuously for 24 hours and fresh food
compartment will be controlled by the setting temperature.
1-5) When the manual operation runs, setting temperature will be selected automatically as below: freezer
compartment -8°F(-23°C), fresh food compartment 34°F(1°C).
1-6) During manual operation, Freezer Key & Power Cool function will not be work.
If a function is selected, the power function icon of the selected function will be off automatically after 10
seconds.
1-7) Manual operation can be canceled by removing power from the unit, then resupplying power.
1-8) Alarm(0.25 sec ON/ 0.75 sec OFF) will beep continuously until manual operation is completed and there is
no function to make the sound stop.
Compulsion working 1 : 3600RPM Compulsion working 2 : 3600RPM
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