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Idiomas disponibles
Idiomas disponibles
Check codes and parts to be checked
Wired
Wireless remote controller
remote
Sensor block display of
controller
receiving unit
display
Main defective parts
Operation Timer
Indication
Ready
Flashing
GR GR OR
No header remote
controller
E01
Remote controller
communication
trouble
Remote controller
E02
transmission trouble
Indoor unit-remote
controller regular
E03
communication
trouble
Indoor unit-outdoor
unit serial
communication
trouble
E04
IPDU-CDB
communication
trouble
Duplicated indoor
E08
addresses
Duplicated header
E09
remote controllers
CPU-CPU
E10
communication
trouble
Communication
trouble between
E11
Application control kit
and Indoor unit
Header unit follower
unit regular
E18
communication
trouble
IPDU communication
E31
trouble
Indoor unit heat
F01
ALT
exchanger sensor
(TCJ) trouble
Indoor unit heat
F02
ALT
exchanger sensor
(TC) trouble
Outdoor unit
F04
ALT
discharge temp.
sensor (TD) trouble
Outdoor unit temp.
F06
ALT
sensor (TE / TS)
trouble
F07
ALT
TL sensor trouble
Outdoor unit outside
F08
ALT
air temp. sensor
trouble
Indoor unit room
F10
ALT
temp. sensor (TA)
trouble
131-EN
Judging
Parts to be checked / trouble description
device
Incorrect remote controller setting --- The header
remote controller has not been set (including two
remote controllers).
Remote
controller
No signal can be received from the indoor unit.
Indoor / outdoor connecting 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.
Indoor / outdoor connecting wires, indoor P.C. board,
Indoor
outdoor P.C. board --- Serial communication trouble
between indoor unit and outdoor unit
Indoor address setting trouble --- The same address
Indoor
as the self-address was detected.
Remote controller address setting trouble --- 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 trouble between
Indoor
main MCU and motor microcomputer MCU
Communication trouble between Application control
Indoor
kit and Indoor unit
Indoor P.C. board --- Regular communication is not
Indoor
possible between header and follower indoor units or
between twin header (main) and follower (sub) units.
Outdoor
Communication trouble 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 (TE / TS), outdoor P.C. board
Outdoor
--- Open-circuit or short-circuit of the heat exchanger
temp. sensor was detected.
TL sensor may be displaced, disconnected or short-
Outdoor
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 (TA), indoor P.C. board --- Open-
Indoor
circuit or short-circuit of the room temp. sensor (TA)
was detected.
Wired
Wireless remote controller
remote
Sensor block display of
controller
receiving unit
display
Operation Timer
Air
Ready
Indication
conditioner
GR GR OR
status
F12
F13
*
F15
F29
F30
*
F31
Auto-
reset
H01
H02
Auto-
reset
H03
Auto-
H04
reset
H06
*
L03
Auto-
L07
reset
L08
Entire
stop
L09
Auto-
L10
reset
Entire
L20
stop
Auto-
reset
L29
Auto-
reset
Entire
stop
L30
Entire
stop
L31
Entire
stop
Operation
P01
continued
Auto-
P03
reset
– 66 –
Judging
Main defective parts
Parts to be checked / trouble description
device
Flashing
TS sensor may be displaced, disconnected or short-
ALT
TS sensor trouble
Outdoor
circuited.
Heat sink sensor
Abnormal temperature was detected by the temp.
ALT
Outdoor
trouble
sensor of the IGBT heat sink.
Temp. sensor
Temp. sensor (TE / TS) may be connected incorrectly. Entire
ALT
Outdoor
connection trouble
Indoor unit, other P.C.
SIM
Indoor
Indoor P.C. board --- EEPROM trouble
board trouble
Occupancy sensor
SIM
Indoor
Abnormality was detected from occupancy sensor.
trouble
Outdoor unit P.C.
Outdoor P.C. board ---- In the case of EEPROM
SIM
Outdoor
board
trouble.
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
Outdoor
Compressor circuit --- Compressor lock was detected.
compressor lock
Current detect circuit, outdoor unit P.C. board ---
Outdoor unit current
Outdoor
Abnormal current was detected in AC-CT or a phase
detect circuit trouble
loss was detected.
Case thermostat
Outdoor
Malfunction of the case thermostat
operation
Outdoor unit low-
Current, high-pressure switch circuit, outdoor P.C.
pressure system
Outdoor
board --- Pressure sensor trouble was detected or
trouble
low-pressure protective operation was activated.
Duplicated header
Indoor address setting trouble --- There are two or
SIM
Indoor
indoor units
more header units in the group.
Group line in
Indoor address setting trouble --- There is at least one
SIM
individual indoor unit
Indoor
group-connected indoor unit among individual indoor
units.
Indoor group address
Indoor address setting trouble --- 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 (for
SIM
Outdoor
board
service) setting trouble
Network
Address setting, central control remote controller,
LAN communication
adapter
SIM
network adapter --- Duplication of address in central
trouble
central
control communication
control
Other outdoor unit trouble
Other outdoor unit
1) Communication trouble between IPDU MCU and
SIM
Outdoor
trouble
CDB MCU
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
trouble, etc.
power supply
Indoor fan motor, indoor P.C. board --- Indoor AC fan
ALT
Indoor unit fan trouble Indoor
trouble (fan motor thermal relay activated) was
detected.
Outdoor unit
An trouble was detected in the discharge temp.
ALT
discharge temp.
Outdoor
releasing control.
trouble
Air
conditioner
status
Entire
stop
Entire
stop
stop
Auto-
reset
Operation
continued
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
132-EN
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