43-EN
44-EN
– 22 –
Wired
remote
controller
display
Wireless remote controller
Sensor block display of
receiving unit
Main defective parts
Judging
device
Parts to be checked /
error description
Air
conditioner
status
Indication
Operation
Timer Ready
GR GR OR
Flashing
F10
ALT
Indoor unit room temp.
sensor (TA) error
Indoor
Room temp. sensor (TA), indoor P.C. board
--- Open-circuit or short-circuit of the room
temp. sensor (TA) was detected.
Auto-reset
F12
ALT
TS sensor error
Outdoor
TS sensor may be displaced, disconnected
or short-circuited.
Entire stop
F13
ALT
Heat sink sensor error
Outdoor
Abnormal temperature was detected by the
temp. sensor of the IGBT heat sink.
Entire stop
F15
ALT
Temp. sensor
connection error
Outdoor
Temp. sensor (TE / TS) may be connected
incorrectly.
Entire stop
F29
SIM
Indoor unit, other P.C.
board error
Indoor
Indoor P.C. board --- EEPROM error.
Auto-reset
F31
SIM
Outdoor unit P.C. board
Outdoor
Outdoor P.C. board ---- In the case of
EEPROM error.
Entire stop
H01
Outdoor unit
compressor breakdown
Outdoor
Current detect circuit, power voltage ---
Minimum frequency was reached in the
current releasing control or short-circuit
current (Idc) after direct excitation was
detected.
Entire stop
H02
Outdoor unit
compressor lock
Outdoor
Compressor circuit --- Compressor lock
was detected.
Entire stop
H03
Outdoor unit current
detect circuit error
Outdoor
Current detect circuit, outdoor unit P.C.
board --- Abnormal current was detected in
AC-CT or a phase loss was detected.
Entire stop
H04
Case thermostat
operation
Outdoor
Malfunction of the case thermostat
Entire stop
H06
Outdoor unit
low-pressure system
error
Outdoor
Current, high-pressure switch circuit,
outdoor P.C. board --- Pressure sensor
error was detected or low-pressure
protective operation was activated.
Entire stop
L03
SIM
Duplicated header
indoor units
Indoor
Indoor address setting error --- There are
two or more header units in the group.
Entire stop
L07
SIM
Group line in individual
indoor unit
Indoor
Indoor address setting error --- There is
at least one group-connected indoor unit
among individual indoor units.
Entire stop
L08
SIM
Indoor group address
not set
Indoor
Indoor address setting error --- Indoor
address group has not been set.
Entire stop
L09
SIM
Indoor unit capacity
not set
Indoor
Indoor unit capacity has not been set.
Entire stop
L10
SIM
Outdoor unit P.C. board
Outdoor
In the case of outdoor P.C. board jumper
wire (for service) setting error.
Entire stop
L20
SIM
LAN communication
error
Network
adapter
central
control
Address setting, central control remote
controller, network adapter ---
Duplication of address in central control
communication.
Auto-reset
L29
SIM
Other outdoor unit error
Outdoor
Other outdoor unit error.
Entire stop
1) Communication error between IPDU
MCU and CDB MCU.
Entire stop
2) Abnormal temperature was detected by
the heat sink temp. sensor in IGBT.
L30
SIM
Abnormal external
input into indoor unit
(interlock)
Indoor
External devices, outdoor unit P.C.
board --- Abnormal stop due to incorrect
external input into CN80.
Entire stop
L31
SIM
Phase sequence error,
etc.
Outdoor
Power supply phase sequence, outdoor unit
P.C. board --- Abnormal phase sequence of
the 3-phase power supply.
Operation
continued
(thermostat
OFF)
P01
ALT
Indoor unit fan error
Indoor
Indoor fan motor, indoor P.C. board ---
Indoor AC fan error (fan motor thermal relay
activated) was detected.
Entire stop
Wired
remote
controller
display
Wireless remote controller
Sensor block display of
receiving unit
Main defective parts
Judging
device
Parts to be checked /
error description
Air
conditioner
status
Indication
Operation
Timer Ready
GR GR OR
Flashing
P03
ALT
Outdoor unit discharge
temp. error
Outdoor
An error was detected in the discharge
temp. releasing control.
Entire stop
P04
ALT
Outdoor unit
high-pressure system
error
Outdoor
High-pressure switch --- The IOL was
activated or an error was detected in the
high-pressure releasing control using the
TE.
Entire stop
P05
ALT
Open phase detected
Outdoor
The power wire may be connected
incorrectly. Check open phase and voltages
of the power supply.
Entire stop
P07
ALT
Heat sink overheat
Outdoor
Abnormal temperature was detected by the
temp. sensor of the IGBT heat sink.
Entire stop
P10
ALT
Indoor unit water
over
fl
ow detected
Indoor
Drain pipe, clogging of drainage,
fl
oat
switch circuit, indoor P.C. board ---
Drainage is out of order or the
fl
oat switch
was activated.
Entire stop
P12
ALT
Abnormal operation of
the fan of the indoor unit
Indoor
Abnormal operation of the indoor fan motor,
indoor P.C. board, or indoor DC fan (over
current or lock, etc.) is detected.
Entire stop
P15
ALT
Gas leakage detected
Outdoor
There may be gas leakage from the pipe or
connecting part. Check for gas leakage.
Entire stop
P19
ALT
4-way valve error
Outdoor
(Indoor)
4-way valve, indoor temp. sensors (TC /
TCJ) --- An error was detected due to
temperature drop of the indoor unit heat
exchanger sensor during heating.
Auto-reset
P20
ALT
High-pressure protective
operation
Outdoor
High-pressure protection.
Entire stop
P22
ALT
Outdoor unit fan error
Outdoor
Outdoor unit fan motor, outdoor unit P.C.
board --- An error (overcurrent, locking,
etc.) was detected in the outdoor unit fan
drive circuit.
Entire stop
P26
ALT
Outdoor unit inverter Idc
activated
Outdoor
IGBT, outdoor unit P.C. board, inverter
wiring, compressor --- Short-circuit
protection for compressor drive circuit
devices (G-Tr / IGBT) was activated.
Entire stop
P29
ALT
Outdoor unit position
error
Outdoor
Outdoor unit P.C. board, high-pressure
switch --- Compressor motor position error
was detected.
Entire stop
P31
ALT
Other indoor unit error
Indoor
Another indoor unit in the group is raising
an alarm.
Entire stop
E03 / L07 / L03 / L08 alarm check locations
and error description.
Auto-reset
: Lighting : Flashing : OFF : The air conditioner automatically enters the auto-address setting mode.
ALT: When two LEDs are
fl
ashing, they
fl
ash alternately. SIM: When two LEDs are
fl
ashing, they
fl
ash in synchronization.
Receiving unit display OR: Orange GR: Green
1111056499_(01)_EN.indb 22
1111056499_(01)_EN.indb 22
10/13/14 9:13 AM
10/13/14 9:13 AM
