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5. SELF DIAGNOSING FUNCTION
NR-BY551 / NR-BY601
When abnormalist is cased in the refrigerator, the sign is displayed on LED as below chart.
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 sec., each LED show as below.
4. “Self Diagnosing” function will be automatically
cancel after 7 min., from start operation.
How to use “Self Diagnosing” function
“Freezer Control” button
“Energy Saving” button
“Quick Freezing” button
Symptom Details of symptom
Energy
Saving LED
Quick
Freezing LED
Freezer
Control LED
Normal None None None
Abnormal of FCC thermistor Break/Short of FCC thermistor None Blinking None
Abnormal of DFC thermistor Break/Short of DFC thermistor None Turn on None
Abnormal of ATC thermistor Break/Short of ATC thermistor Blinking Turn on None
Abnormal of defrost heater in FC Break/Short of defrost heater Turn on None None
Abnormal of INV compressor Operate protector of IPM lock
Operate protector of voltage dropping
Operate protector of over voltage
Turn on Blinking None
Abnormal of FC fan motor Break/Lock of FC fan motor
Abnormal revolution of FC fan motor
Turn on Turn on None
Abnormal of PCB Error of communication
Error of EEPROM
Blinking Blinking None
Refrigerating unit trouble Gas leakage at high pressure side
poor compression
None None MAX
Blinking
Refrigerating unit trouble Gas leakage at low pressure side None None MIN
Blinking
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