Samsung RSA1DTMG User Manual download pdf (Page 46)

TROUBLE SHOOTING

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. (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 release these error codes, fix all the problems with the defective sensor or press the Power

Freeze and the Vacation (or Power Cool) buttons for 8 seconds.

2) Self-Diagnosis Function during Normal Operation

2-1) When the the Power Freeze and the Vacation (or for 30 seconds) 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 2 seconds. When the Power Cool and the Operation buttons are held down

for 8 seconds (including the 2-second LED blinking) at the same time, it sends out "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 there is any error,

relevant segments will blink at an interval of 0.5 sec. (Refer to Self-Diagnosis Check List below)

2-3) When there is error, segment blinking continues for 30 seconds and it goes to the normal

operation mode, sending out "Ding-Dong" sound, regardless of its correction.

2-4) Buttons won't work during Self-Diagnosis.

4-1-2) Self-Diagnosis Function

RSA1Z RSA1J RSA1U RSA1D Series

Press the Power Freeze and the Vacation buttons for 8 seconds at the same time.

Press the Power Freeze and the Vacation (or Power Cool) buttons for 8 seconds at the same time.

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RSA1N RSA1S RSA1W Series

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Samsung RSA1DTMG User Manual Page 46