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ER R OR D ETEC TION
INDOOR UNIT
and WIRED REMOTE CONTROL
If you use a wireless remote control, the lamp
on the photo detector unit will output error codes
by way of blinking patterns.
If you use a wired type remote control, 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 running.
Remote control
This is possible only on a wired remote control.
.
If an error occurs, the following display will be shown.
("Er" will appear in the set room temperature display.)
Unit number of
Error code
indoor unit
EX. Self-diagnosis
Indoor unit display (option)
TIMER Lamp
ECONOMY Lamp
(ORANGE)
(GREEN)
OPERATION Lamp
(GREEN)
MANUAL AUTO
: 0.5s on / 0.5s off
: 0.1s on / 0.1s off
( ) : Number of flashing
2013.02.27
Indoor unit
Wired
OPERATION
TIMER
ECONOMY
remote
lamp
lamp
lamp
control
(green)
(orange)
(green)
Serial communication error
(1)
(1)
Wired remote control communication error
(1)
(2)
Check run unfinished
(5)
(1)
Unit number or Refrigerant circuit address setting error
(2)
(1)
[Simultaneous Multi]
Indoor unit capacity error
(2)
(2)
Combination error
(2)
(3)
•
(2)
(4)
•
Master unit, slave unit set-up error
(2)
(7)
[Simultaneous Multi]
Power supply interruption error
(3)
(1)
Indoor unit PCB model
(3)
(2)
information error
Manual auto switch error
(3)
(5)
Inlet air temp. sensor error
(4)
(1)
Indoor unit Heat Ex. Middle temp. sensor error
(4)
(2)
Indoor unit fan motor error
(5)
(1)
Drain pump error
(5)
(3)
Damper error
(5)
(7)
Indoor unit error
(5)
(15)
Outdoor unit main PCB model information error
(6)
(2)
or communication error
Inverter error
(6)
(3)
Active filter error, PFC circuit error
(6)
(4)
Trip terminal Lerror
(6)
(5)
Display PCB microcomputers communication error
(6)
(10)
Description
OPERATION
Connection unit number error (indoor slave unit)
[Simultaneous Multi]
Connection unit number error (indoor unit or branch unit)
[Flexible Multi]
14
Indoor unit
Wired
TIMER
ECONOMY
remote
Description
lamp
lamp
lamp
control
(green)
(orange)
(green)
Discharge temp. sensor error
(7)
(1)
Compressor temp. sensor error
(7)
(2)
Outdoor unit Heat Ex. liquid temp. sensor error
(7)
(3)
Outdoor temp. sensor error
(7)
(4)
Suction Gas temp. sensor error
(7)
(5)
•
2-way valve temp. sensor error
(7)
(6)
•
3-way valve temp. sensor error
Heat sink temp. sensor error
(7)
(7)
•
Sub-cool Heat Ex. gas inlet temp. sensor error
(8)
(2)
•
Sub-cool Heat Ex. gas outlet temp.sensor error
Liquid pipe temp. sensor error
(8)
(3)
Current sensor error
(8)
(4)
•
Discharge pressure sensor error
(8)
(6)
•
Suction pressure sensor error
•
High pressure switch error
Trip detection
(9)
(4)
Compressor rotor position detection error
(9)
(5)
(permanent stop)
Outdoor unit fan motor error
(9)
(7)
Outdoor unit fan motor 2 error
(9)
(8)
4-way valve error
(9)
(9)
Coil (expansion valve) error
(9)
(10)
Discharge temp. error
(10)
(1)
Compressor temp. error
(10)
(3)
High pressure error
(10)
(4)
Low pressure error
(10)
(5)
Branch boxes error
(13)
(2)
[Flexible Multi]
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