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Alignment and Adjustments
Samsung Electronics3-4
Operating
Error of indoor unit:
Displayed on the
indoor unit
regardless of
operation
Displayed on
appropriate indoor
unit which is
operating Displayed
on outdoor unit
Indicators
Abnormal conditions
NJ✳✳✳1HXCA
NJ✳✳✳MHXCA
Power reset
Error of temperature sensor in indoor unit (OPEN/SHORT)
Error of heat exchanger sensor in indoor unit
Error of heat exchanger OUT sensor in indoor unit
Error of outlet temperature sensor in indoor unit
(OPEN/SHORT): For heat pump models only
Error of mixed operation
Error of indoor fan motor : Below 450RPM for 15 minutes
Error of outdoor temperature sensor
Error of CONDENSER sensor
Error of DISCHARGE sensor
1. No communication for 2 minutes between indoor unit and
outdoor unit (communication error for more than
2 minutes)
2. Indoor unit receiving the communication error from
outdoor unit
3. Outdoor unit tracking 3 minutes error
4. When sending the communication error from outdoor unit
due to the mismatching of the communication numbers
and installed numbers after completion of tracking
(communication error for more than 2 minutes)
1. 2
nd
detection of refrigerant completely leak
2. 2
nd
detection of high temperature CONDENSER
3. 2
nd
detection of high temperature DISCHARGE
4. Compressor down due to 6th detection of freezing
Error of float switch
Error of setting option switches for optional accessories
EEPROM error
EEPROM option error
Green Red Yellow Green Orange
: On : Flickering : Off
◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
■ NJ✳✳✳1HXCA/NJ✳✳✳MHXCA
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