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ENGLISH
Self-Diagnosis Function (U4 Chassis, 1FAN Model)
Error Indicator
- This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.
- Error mark is displayed on display window of indoor units and wired remote controller, and red/green LED of outdoor unit control board as shown
in the table.
- If more than two troubles occur simultaneously, lower number of error code is first displayed.
- After error occurrence, if error is released, error LED is also released simultaneously.
Error indication method
Red LED means error number 10 places, Green LED means 1 place, if Red and Green LED are flickering at the same time, it means 100 places of
error number.
Ex) Red and Green LED are flickering once at the same time, and Red LED is flickering once, at last Green LED is flicking once : Error number 115
Display
Title
Cause of Error
Indoor unit related error
0
1
0
2
0
3
0
4
0
5
0
6
0
9
1
0
Outdoor unit related error
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
Air temperature sensor of indoor unit
Inlet pipe temperature sensor of indoor unit
Communication error : wired
remote controller
÷
indoor unit
Drain pump
Communication error : outdoor unit
÷
indoor unit
Outlet pipe temperature sensor of indoor unit
Indoor EEPROM Error
Poor fan motor operation
Outdoor Unit Inverter Compressor IPM Fault
Inverter Board Input Over Current(RMS) of Outdoor
Unit
Outdoor Unit Inverter Compressor DC link Low Volt-
age
Outdoor Unit High Pressure Switch
Outdoor Unit Input Voltage High/ Low Voltage
Outdoor Unit Inverter Compressor Start Failure
PSC/PFC Fault error
Outdoor Unit Inverter DC link High Voltage
Outdoor Unit Inverter Compressor Over Current
Air temperature sensor of indoor unit is open or short
Inlet pipe temperature sensor of indoor unit is open or short
Failing to receive wired remote controller signal in indoor unit PCB
Malfunction of drain pump
Failing to receive outdoor unit signal in indoor unit PCB
Outlet pipe temperature sensor of indoor unit is open or short
In case when the serial number marked on
EEPROM of Indoor unit is 0 or FFFFFF
Disconnecting the fan motor connector/Failure of indoor fan motor
lock
Outdoor Unit Inverter Compressor Drive IPM Fault
Outdoor Unit Inverter Board Input Current excess (RMS)
DC charging is not performed at outdoor unit after starting relay turn
on.
System is turned off by outdoor unit high pressure switch.
Outdoor Unit input voltage is out of range.
The First Start Failure by Outdoor Unit Inverter Compressor Abnormal-
ity
When over current flows instantly at PSC/PFC
System is turned off by outdoor unit DC Voltage Over Charging
Outdoor Unit Inverter Compressor Fault OR Drive Fault
Содержание ARUN40GS2A
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