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5. SELF DIAGNOSING FUNCTION
1. Opening PC door and FC door,
Push “Quick Freezing” bottom more than 5 sec.
2. Blinking LED of “Energy Saving” and “Quick Freezing”
during 3 sec.
3. After blinking at 3 sec., each LED show as below.
How to use “Self Diagnosing” function
Symptom Details of symptom
Energy Saving
LED
Quick Freezing
LED
Normal None None
Abnormal of FCC thermistor Break/Short of FCC thermistor None Blinking
Abnormal of DFC thermistor Break/Short of DFC thermistor None Turn on
Abnormal of ATC thermistor Break/Short of ATC thermistor Blinking Turn on
Abnormal of defrost heater in FC Break/Short of defrost heater Turn on None
Abnormal of INV compressor Operate protector of IPM lock
Operate protector of voltage dropping
Operate protector of over voltage
Turn on Blinking
Abnormal of FC fan motor Break/Lock of FC fan motor
Abnormal revolution of FC fan motor
Turn on Turn on
Abnormal of PCB Error of communication
Error of EEPROM
Blinking Blinking
NR-B37MV2 / NR-B41MV2
Energy Saving
Quick Freezing