
Self-Diagnosis Function
Error Display
1st,2nd LED of 7-segment indicates error number, 3rd LED indicates unit number.
Ex) 211 : No. 21 error of outdoor unit
011
’
051 : No. 105 error of outdoor unit
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.
❈
Refer to the DX-Venitilation manual for DX-Venitilation error code
Test Run
ENGLISH
Installation Manual
65
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 con-
troller
÷
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
Outdoor unit related error
2
1
1
Outdoor unit Inverter Compressor IPM
Fault
Outdoor unit Inverter Compressor Drive IPM Fault
2
2
1
Inverter Board Input Over Current(RMS)
of Outdoor Unit
Outdoor unit Inverter Board Input Current excess (RMS)
2
3
1
Outdoor unit Inverter Compressor DC link
Low Voltage
DC charging is not performed at Outdoor unit after start-
ing relay turn on.
2
4
1
Outdoor unit High Pressure Switch
System is turned off by Outdoor unit high pressure
switch.
Содержание Multi V ARUN100LM3
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