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Troublshooting
Appendix
AC100/120/140RNCDKG
Abnormal conditions
Indicators
Remarks
Blue Green Orange Red
Power reset
X X X
0.5[S]=On,0.5[S]=Off
Operation on
X X X
Operation off
X X X X
Reservation
X X X
Filter sign
X X X
Defrosting
X X X
1[S]=On,9[S]=Off
Smart install Error
X X X
Communication error between indoor
units and outdoor unit
X X X
EEPROM error /EEPROM option error
X X
Error of temperature sensor in indoor
unit (open/short)
X X X
Error of outdoor Unit/Self-Diagnosis
X X X
Error of the indoor unit pipe sensor
X X
Indoor fan error
X X
Thermal fuse open error
X X
Indoor unit float S/W 2nd detection
X X
: On, : Blinking, X : Off
• If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
• If you re-operate the air conditioner, it operates normally at first, then detects an error again.
• If the LED displays only one color, it is turned on for a second and turned off for a second.
• If the LED displays more than two colors, each color is shown for a second alternately.