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ENGLISH
Installation Manual 61
Test Run
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.
※
Refer to the DX-Venitilation manual for DX-Venitilation error code.
Self-Diagnosis Function
Display Title Cause of Error
01-
02-
03-
04-
05-
06-
09-
10-
17-
211
221
231
241
251
261
271
281
291
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
Inlet Air temperature sensor of
FAU
Outdoor Unit Inverter Compressor
IPM Fault
Inverter Board Input Over
Current(RMS) of Outdoor Unit
Outdoor Unit Inverter Compressor
DC link Low Voltage
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
Air temperature sensor of indoor unit is open or short
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 Abnormality
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
Indoor unit related error
Outdoor unit related error
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