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16.ERROR CODES
If you use a wireless remote controller, the lamp on the photo detector unit will output error
codes by way of blinking patterns. If you use a wired remote controller, error codes will appear on the remote control display. See the lamp blinking patterns and error codes in the
table. An error display is displayed only during operation.
Error display
OPERATION TIMER ECONOMY
lamp
lamp
lamp
(green)
(orange)
(green)
●(1)
●(1)
◊
●
●
(2)
◊
●(1)
●(5)
◊
●
●
(1)
(2)
●(2)
●(2)
●(2)
●(2)
●(3)
(1)
●(2)
●(3)
●(4)
●(7)
●(2)
◊
◊
◊
Wired
remote
controller
Error code
Wired remote controller
communication error
Check run unfinished
Unit number or Refrigerant circuit
address setting error
[Simultaneous Multi]
◊
Indoor unit PCB model
information error
●(1)
◊
●(4)
●(2)
◊
●(5)
●(1)
◊
●(5)
●(3)
◊
●(5)
●(7)
◊
●(5)
●(8)
◊
●(5)
●(15)
◊
●(6)
●(2)
◊
●(6)
●(3)
◊
●(6)
●(4)
◊
●(6)
●(5)
◊
●(6)
●(10)
◊
●(7)
●(1)
◊
●(7)
●(2)
◊
●(7)
●(3)
◊
●(7)
●(4)
◊
●(7)
●(5)
◊
●(7)
●(6)
◊
●(7)
●(7)
◊
●(3)
◊
●(8)
●(4)
◊
●(8)
●(6)
◊
●(9)
●(4)
◊
●(9)
●(5)
◊
●(9)
●(7)
◊
●(9)
●(9)
◊
●(10)
●(1)
◊
●(10)
●(3)
◊
●(10)
●(4)
◊
●(10)
●(5)
◊
●(13)
●(2)
◊
Combination error
◊
●(4)
●(8)
Indoor unit capacity error
Master unit, slave unit set-up
error [Simultaneous Multi]
◊
◊
Serial communication error
◊
●(5)
●(2)
Description
• Connection unit number error
(indoor slave unit)
[Simultaneous Multi]
• Connection unit number error
(indoor unit or branch unit)
[Flexible Multi]
●(3)
●(8)
Display mode
• Sub-cool Heat Ex. gas inlet
temp. sensor error
• Sub-cool Heat Ex. gas outlet
temp. sensor error
Liquid pipe temp. sensor error
Current sensor error
• Discharge pressure sensor
error
• Suction pressure sensor error
• High pressure switch error
Trip detection
Compressor rotor position
detection error
Outdoor unit fan motor error
4-way valve error
Discharge temp. error
Compressor temp. error
High pressure error
Low pressure error
Branch boxes error
[Flexible Multi]
● : 0.5s ON / 0.5s OFF
◊ : 0.1s ON / 0.1s OFF
( ) : Number of flashing
Manual auto switch error
[Troubleshooting with the indoor unit display]
Room temp. sensor error
Indoor unit Heat Ex. Middle temp.
sensor error
Indoor unit fan motor error
Drain pump error
Damper error
OPERATION indicator (green)
TIMER indicator (orange)
ECONOMY indicator (green)
Intake grille error
Indoor unit error
Outdoor unit main PCB model
information error or
communication error
[Troubleshooting with the Wired Remote Controller Display (Option)]
If an error occurs, the following display will be shown. (“Er” will appear in the set room
temperature display.)
Inverter error
Active filter error, PFC circuit error
Error code
Trip terminal L error
Display PCB microcomputers
communication error
Discharge temp. sensor error
Compressor temp. sensor error
Outdoor unit Heat Ex. liquid
temp. sensor error
Outdoor temp. sensor error
Suction Gas temp. sensor error
• 2-way valve temp. sensor error
• 3-way valve temp. sensor error
Heat sink temp. sensor error
En-11
9333005003-04_IM.indb 11
2013-3-6 14:52:48