Self-Diagnosis Function Upon Initial Power-On; Self-Diagnosis Function During Normal Operation - Samsung RL44Q Series Service Manual

TROUBLESHOOTING 5. SELF DIAGNOSIS & TROUBLE SHOOTING
4-1-1-2) 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 Menu +
Operation buttons for 10 seconds.

2) Self-Diagnosis Function during Normal Operation

2-1) When the Menu + Operation buttons are held down for 6 seconds at the same time during
normal operation, the temperature setting display will blink at an interval of 0.5 sec for 4
seconds.
When the Menu + Operation buttons are held down for 10 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)
➀
HOLD 10 SEC
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