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Idiomas disponibles
Error codes and parts to be checked
Wired
Wireless remote
remote
controller Sensor block
controller
display of receiving unit
display
Main problem parts
Operation Timer
Indication
Ready
Flashing
GR GR OR
No header remote
controller
E01
Remote controller
communication error
Remote controller
E02
transmission error
Indoor unit-remote
E03
controller regular
communication error
Indoor unit-outdoor
unit serial
communication error
E04
IPDU-CDB
communication error
Duplicated indoor
E08
addresses
Duplicated header
E09
remote controllers
CPU-CPU
Е10
communication error
Header unit follower
E18
unit regular
communication error
IPDU communication
E31
error
Indoor unit heat
F01
ALT
exchanger sensor
(TCJ) error
Indoor unit heat
F02
ALT
exchanger sensor
(TC) error
Outdoor unit discharge
F04
ALT
temp.
sensor (TD) error
Outdoor unit temp.
F06
ALT
sensor (TE / TS) error
F07
ALT
TL sensor error
Outdoor unit outside
F08
ALT
air temp. sensor error
Indoor unit room
F10
ALT
temp. sensor (TA)
error
F12
ALT
TS sensor error
F13
ALT
Heat sink sensor error
49-EN
Judging
Parts to be checked / error description
device
Incorrect remote controller setting --- The header
remote controller has not been set (including two
Remote
remote controllers).
controller
No signal can be received from the indoor unit.
System interconnection wires, indoor P.C. board,
Remote
remote controller
controller
--- No signal can be sent to the indoor unit.
Remote controller, network adapter, indoor P.C.
Indoor
board --- No data is received from the remote
controller or network adapter.
System interconnection wires, indoor P.C. board,
Indoor
outdoor P.C. board --- Serial communication error
between indoor unit and outdoor unit
Indoor address setting error --- The same address
Indoor
as the self-address was detected.
Remote controller address setting error --- Two
remote controllers are set as header in the double-
Remote
remote controller control.
controller
(* The header indoor unit stops raising alarm and
follower indoor units continue to operate.)
Indoor P.C. board --- Communication error between
Indoor
main MCU and motor microcomputer MCU
Indoor P.C. board --- Regular communication is
not possible between header and follower indoor
Indoor
units or between twin header (main) and follower
(sub) units.
Outdoor
Communication error between IPDU and CDB
Heat exchanger sensor (TCJ), indoor P.C. board ---
Indoor
Open-circuit or short-circuit of the heat exchanger
sensor (TCJ) was detected.
Heat exchanger sensor (TC), indoor P.C. board ---
Indoor
Open-circuit or short-circuit of the heat exchanger
sensor (TC) was detected.
Outdoor temp, sensor (TD), outdoor P.C. board ---
Outdoor
Open-circuit or short-circuit of the discharge temp,
sensor was detected.
Outdoor temp, sensors (ТЕ / TS), outdoor P.C.
Outdoor
board --- Open-circuit or short-circuit of the heat
exchanger temp, sensor was detected.
TL sensor may be displaced, disconnected or
Outdoor
short-circuited.
Outdoor temp, sensor (TO), outdoor P.C. board ---
Outdoor
Open-circuit or short-circuit of the outdoor air temp,
sensor was detected.
Room temp, sensor (ТА), indoor P.C. board
Indoor
--- Open-circuit or short-circuit of the room temp,
sensor (ТА) was detected.
TS sensor may be displaced, disconnected or
Outdoor
short-circuited.
Abnormal temperature was detected by the temp,
Outdoor
sensor of the IGBT heat sink.
– 25 –
Wired
Wireless remote
remote
controller Sensor block
controller
display of receiving unit
display
Operation Timer
Air
Indication
Ready
conditioner
GR GR OR
status
F15
F29
*
F31
H01
*
H02
Auto-reset
H03
H04
Auto-reset
H06
Auto-reset
L03
*
L07
L08
Auto-reset
L09
Auto-reset
L10
Entire stop
L20
Auto-reset
L29
Auto-reset
Entire stop
L30
Entire stop
L31
Entire stop
Operation
P01
continued
P03
Auto-reset
P04
Entire-stop
Entire stop
P05
Judging
Main problem parts
Parts to be checked / error description
device
Flashing
Temp. sensor
Temp, sensor (ТЕ / TS) may be connected
ALT
Outdoor
connection error
incorrectly.
Indoor unit, other P.C.
SIM
Indoor
Indoor P.C. board --- EEPROM error
board error
Outdoor unit P.C.
Outdoor P.C. board --- In the case of EEPROM
SIM
Outdoor
board
error.
Current detect circuit, power voltage --- Minimum
Outdoor unit
frequency was reached in the current releasing
compressor
Outdoor
control or short-circuit current (Idc) after direct
breakdown
excitation was detected
Outdoor unit
Compressor circuit --- Compressor lock was
Outdoor
compressor lock
detected.
Current detect circuit, outdoor unit P.C. board ---
Outdoor unit current
Outdoor
Abnormal current was detected in AC-CT or a
detect circuit error
phase loss was detected.
Case thermostat
Outdoor
Malfunction of the case thermostat
operation
Current, high-pressure switch circuit, outdoor P.C.
Outdoor unit low-
Outdoor
board --- Pressure sensor error was detected or
pressure system error
low- pressure protective operation was activated.
Duplicated header
Indoor address setting error --- There are two or
SIM
Indoor
indoor units
more header units in the group.
Indoor address setting error --- There is at least
Group line in individual
SIM
Indoor
one group-connected indoor unit among individual
indoor unit
indoor units.
Indoor group address
Indoor address setting error --- Indoor address
SIM
Indoor
not set
group has not been set.
Indoor unit capacity
SIM
Indoor
Indoor unit capacity has not been set.
not set
Outdoor unit P.C.
In the case of outdoor P.C. board jumper wire
SIM
Outdoor
board
(for service) setting error
Network
Address setting, central control remote controller,
LAN communication
adapter
SIM
network adapter --- Duplication of address in
error
central
central control communication
control
Other outdoor unit error
1) Communication error between IPDU MCU and
Other outdoor unit
SIM
Outdoor
CDB MCU
error
2) Abnormal temperature was detected by the heat
sink temp, sensor in IGBT.
Abnormal external
External devices, outdoor unit P.C. board ---
SIM
input into indoor unit
Indoor
Abnormal stop due to incorrect external input into
(interlock)
CN80
Power supply phase sequence, outdoor unit P.C.
Phase sequence
SIM
Outdoor
board --- Abnormal phase sequence of the 3-phase
error, etc.
power supply
Indoor fan motor, indoor P.C. board --- Indoor AC
ALT
Indoor unit fan error
Indoor
fan error (fan motor thermal relay activated) was
detected.
Outdoor unit
An error was detected in the discharge temp,
ALT
Outdoor
discharge temp. error
releasing control.
High-pressure switch --- The IOL was activated
Outdoor unit high-
ALT
Outdoor
or an error was detected in the high-pressure
pressure system error
releasing control using the ТЕ.
The power wire may be connected incorrectly.
ALT
Open phase detected
Outdoor
Check open phase and voltages of the power
supply.
Air
conditioner
status
Entire stop
Auto-reset
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Auto-reset
Entire stop
Entire stop
Entire stop
Operation
continued
(thermost
at OFF)
Entire stop
Entire stop
Entire stop
Entire stop
50-EN
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