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.
Indoor unit
Wired
remote
control
INDOOR UNIT
and WIRED REMOTE CONTROL
ERROR DETECTION
Description
OPERATION
lamp
(green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(1) (1)
Serial communication error
(1) (2)
Wired remote control communication error
(1)
(5)
Check run unfinished
(2)
(1)
Unit number or Refrigerant circuit address setting error
[Simultaneous Multi]
(2) (2)
Indoor unit capacity error
(2) (3)
Combination error
(2)
(4)
Connection unit number error (indoor slave unit)•
[Simultaneous Multi]
Connection unit number error (indoor unit or branch unit)
•
[Flexible Multi]
(2)
(7)
Master unit, slave unit set-up error
Power supply interruption error
[Simultaneous Multi]
(3)
(2)
Indoor unit PCB model
information error
(3) (5)
Manual auto switch error
(4) (1)
Inlet air temp. sensor error
(4) (2)
Indoor unit Heat Ex. Middle temp. sensor error
(5)
(1)
Indoor unit fan motor error
(5)
(3)
Drain pump error
(5) (7)
Damper error
(5) (15)
Indoor unit error
(6)
(2)
Outdoor unit main PCB model information error
or communication error
(6) (3)
Inverter error
(6)
(4)
Active filter error, PFC circuit error
(6) (5)
Trip terminal Lerror
(6)
(10)
Display PCB microcomputers communication error
: 0.5s on / 0.5s off
: 0.1s on / 0.1s off
( ) : Number of flashing
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.)
2012.04.26 18
(3)
(1)
Indoor unit
Wired
remote
control
Description
OPERATION
lamp
(green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(7)
(1)
Discharge temp. sensor error
(7) (2)
Compressor temp. sensor error
(7) (3)
Outdoor unit Heat Ex. liquid temp. sensor error
(7) (4)
Outdoor temp. sensor error
(7)
(5)
Suction Gas temp. sensor error
(7) (6)
2-way valve temp. sensor error•
3-way valve temp. sensor error•
(7) (7)
Heat sink temp. sensor error
(8) (2)
Sub-cool Heat Ex. gas inlet temp. sensor error•
Sub-cool Heat Ex. gas outlet temp.sensor error•
(8) (3)
Liquid pipe temp. sensor error
(8) (4)
Current sensor error
(8) (6)
Discharge pressure sensor error•
Suction pressure sensor error•
High pressure switch error•
(9) (4)
Trip detection
(9) (5)
Compressor rotor position detection error
(permanent stop)
(9) (7)
Outdoor unit fan motor error
(9) (9)
4-way valve error
Coil (expansion valve) error
Outdoor unit fan motor 2 error
(10) (1)
Discharge temp. error
(10) (3)
Compressor temp. error
(10) (4)
High pressure error
(10) (5)
Low pressure error
(13) (2)
Branch boxes error
[Flexible Multi]
(9) (8)
(9) (10)
Remote control
.
Error codeUnit number of
indoor unit
EX. Self-diagnosis
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