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ENGLISH
Installation Manual 105
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 7-segment 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 Display
1st,2nd LED of 7-segment indicates error number, 3rd LED indicates unit number.
Ex) 211 : No.21 error of master unit
213 : No.21 error of slave2
011
→
051 : No.105 error of master unit
❈
Refer to the DX-Venitilation manual for DX-Venitilation error code
Display Title Cause of Error
Indoor unit related error
0 1 - Air temperature sensor of indoor unit Air temperature sensor of indoor unit is open or short
0 2 -
Inlet pipe temperature sensor of indoor
unit
Inlet pipe temperature sensor of indoor unit is open or
short
0 3 -
Communication error : wired remote
controller
↔
indoor unit
Failing to receive wired remote controller signal in indoor
unit PCB
0 4 - Drain pump Malfunction of drain pump
0 5 -
Communication error : outdoor unit
↔
indoor unit
Failing to receive outdoor unit signal in indoor unit PCB
0 6 -
Outlet pipe temperature sensor of indoor
unit
Outlet pipe temperature sensor of indoor unit is open or
short
0 9 - Indoor EEPROM Error
In case when the serial number marked on EEPROM of
Indoor unit is 0 or FFFFFF
1 0 - Poor fan motor operation
Disconnecting the fan motor connector/Failure of indoor
fan motor lock
1 7 - Inlet Air temperature sensor of FAU Air temperature sensor of indoor unit is open or short
Outdoor unit related error
2 1
1
Master Outdoor Unit Inverter Compressor
IPM Fault
Master Outdoor Unit Inverter Compressor Drive IPM Fault
2
Slave1 Outdoor Unit Inverter Compressor
IPM Fault
Slave1 Outdoor Unit Inverter Compressor Drive IPM Fault
3
Slave2 Outdoor Unit Inverter Compressor
IPM Fault
Slave2 Outdoor Unit Inverter Compressor Drive IPM Fault
2 2
1
Inverter Board Input Over Current(RMS) of
Master Outdoor Unit
Master Outdoor Unit Inverter Board Input Current excess
(RMS)
2
Inverter Board Input Over Current(RMS) of
Slave1 Outdoor Unit
Slave1 Outdoor Unit Inverter Board Input Current excess
(RMS)
3
Inverter Board Input Over Current(RMS) of
Slave2 Outdoor Unit
Slave2 Outdoor Unit Inverter Board Input Current excess
(RMS)
Self-Diagnosis Function
Test Run
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