Self-Diagnosis Function (Led Model) - Samsung RL44Q Series Service Manual

TROUBLESHOOTING 5. SELF DIAGNOSIS & TROUBLE SHOOTING
4-1-2-2) Self-Diagnosis Function
1) Self-Diagnosis Function upon Initial Power-On
1-1) When the unit is plugged into the power, MICOM diagnoses the status of the temperature
sensors in a few minutes .
1-2) If defective sensor is found after Self-Diagnosis,relevant Display LEDs will blink at an interval of
0.5 sec. and there will be no extra warning sound (Refer to Self-Diagnosis Check List)
1-3) During a state that a defective sensor were found and its relevant LED were blinking, it would
only recognize the Self-Diagnosis button combination and it does not do the normal display.
But, the temperature will be controlled through the Emergency Operation.
1-4) To cancel these error codes,fix all the problems with the defective sensor or press
the Super Freeze
2) Self-Diagnosis Function during Normal Operation
2-1) When the Super Freeze
time during normal operation, the temperature setting display will blink at an interval of 0.5 sec
for 2 seconds.
When the Super Freeze +Vacation buttons are held down for 8 seconds (including the 4-second
LED blinking) at the same time, it sends out a "Ding-Dong" sound and goes into the Self-
Diagnosis function.
2-2) When it goes into the Self-Diagnosis, the entire display panel goes off and when error occurs,
it will last for 30 seconds continuously and go back to the normal status.
(It sends out "Ding-Dong" sounds.) (Refer to Self-Diagnosis Check List below)
2-3) Buttons won't work during Self-Diagnosis.
+ Vacation buttons for 8 seconds.
➀
HOLD 8 SEC
+ Vacation buttons are held down for 6 seconds at the same
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