48-EN
47-EN
– 24 –
EN
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
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
F30
SIM
Occupancy sensor
trouble
Indoor
Abnormality was detected from occupancy
sensor.
Operation
continued
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 indoor
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 errorm
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
Outdoor
Other outdoor unit error
Entire stop
1) Communication error between IPDU MCU
and CDB MCU
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
(thermost at
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
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
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
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
The fan error 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
when 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
