Error in receiving serial communication signal (Signal from
main indoor unit in case of group control) Auto address is not completed
Outdoor system address, indoor system address, or indoor unit
individual/main/sub setting is not set (Automatic address setting is not
completed) |
E01 |
Error in transmitting serial communication signal
|
E02 |
Indoor unit is detecting error signal from remote controller
(and system controller)
|
E03 |
Indoor unit address setting is duplicated
|
E08 |
Remote controller setting is duplicated
|
E09 |
Error in transmitting serial communications signal
|
E10 |
Error in receiving serial communications signal
|
E11 |
Main unit duplication in simultaneous-operation multi
control (detected by outdoor unit) |
E14 |
Error in receiving serial communications signal
|
E04 |
Error in transmitting serial communications signal
|
E05 |
Error in receiving serial communications signal (including
unit quantity verification failure) |
E06 |
Error in transmitting serial communications signal
|
E07 |
Indoor unit capacity too low |
E15 |
Indoor unit capacity too high |
E16 |
No indoor units connected |
E20 |
Error in transmitting serial communications signal
|
E17 |
Error in receiving serial communications signal
|
E18 |
Communications failure with MDC |
E31 |
|
|
Indoor unit group settings error
|
L01 |
Indoor/outdoor unit type mismatch
|
L02 |
Main unit duplication in group control (detected by indoor
unit) |
L03 |
Outdoor unit address duplication (system address)
|
L04 |
Group wiring connected for independent indoor unit
|
L07 |
Address not set or group not set
|
L08 |
Indoor unit capacity not set |
L09 |
Outdoor unit capacity not set or setting error
|
L10 |
|
|
Miswiring in group control wiring
|
L11 |
Indoor unit type setting error (capacity)
|
L13 |
Ceiling panel connection failure |
P09 |
Fan protective thermostat |
P01 |
Float switch |
P10 |
Discharge temperature trouble |
P03 |
Open phase detected, AC power trouble
|
P05 |
No gas |
P15 |
4-way valve locked |
P19 |
High cooling load |
P20 |
Outdoor fan trouble |
P22 |
Inverter compressor trouble (HIC PCB)
|
P26 |
Inverter compressor trouble (MDC)
|
P29 |
Simultaneous-operation multi control trouble
|
P31 |
Compressor current failure (overload)
|
H01 |
Indoor heat exchanger temperature sensor (E1)
|
F01 |
Indoor heat exchanger temperature sensor (E2)
|
F02 |
Indoor temperature sensor |
F10 |
Discharge temperature (TD) |
F04 |
Outdoor heat exchanger temperature (C1)
|
F06 |
Outdoor heat exchanger temperature (C2)
|
F07 |
Outdoor air temperature (TO) |
F08 |
Intake temperature (TS) |
F12 |
Indoor EEPROM error |
F29 |
Outdoor EEPROM error |
F31
|
Remote controller alarm display
|
Alarm contents |
Judgment condition |
Clear condition |
Judgment and correction |
|
P03 |
Abnormal discharge temperature •Discharge temp. detected at
or above the specified value. |
Stops when temp. exceeds 111°C. |
Recovery at restart |
1. Check refrigerant cycle (gas leak). 2. Electronic control
valve trouble 3. Check tubing sensor (TD). |
P05 |
Missing phase detected. (CT disconnected or AC power
trouble) |
Current value sent from MDC on outdoor unit control PCB is
low. No AC power input for 3 minutes or longer: pre-trip - 5 |
Recovery at restart |
1. Check R/S/T power. 2. Check inverter control PCB. 3.
Check outdoor unit control PCB. |
P15 |
Insufficient gas level detected. |
The following conditions continue for 1 minute. •Discharge
temp. is 95°C or higher. •Electronic control valve is at step 480. •Current
value from MDC is 1.7 A (3-phase) or 1.0 A (1-phase) or less. |
Recovery at restart |
Check refrigerant cycle (gas leak). |
P19 |
4-way valve locked •Judgment occurs after compressor has
been ON for 5 minutes. |
Indoor heat exchanger temp. drops although compressors are
ON in heating mode: [min(E1, E2)] ≤10°C. Indoor heat exchanger temp. rises
although compressors are ON in cooling mode: E2 ≥40°C |
Recovery at restart |
1. Check 4-way valve. 2. Check 4-way valve wiring. 3. Check
outdoor unit control PCB. |
P20 |
High-pressure protection trouble detected from cooling
high-load C2 temp. |
Temp. exceeds 64°C and subsequently does not drop to 55°C or
below. •Continuously for 30 seconds →Alarm is output when this occurs once.
•Continuously for less than 30 seconds →Inverter stops. |
Recovery at restart |
1. Refrigerant cycle overload operation 2. Outdoor coil
temperature sensor C2 |
P22 |
Outdoor unit fan motor trouble •Inverter protection circuit
was activated, or lock was detected, at outdoor unit fan motor. |
Inverter stops after alarm is detected |
Recovery at restart |
1. Position detection trouble 2. Overcurrent protection
circuit at outdoor unit fan motor was activated. •Check outdoor unit control
PCB. •Refer to outdoor unit fan judgment methods. |
P26 |
Inverter protection circuit was activated, or G-Tr
short-circuit (short time: 0.8 s or less) in inverter control |
Inverter stops after alarm is detected. Alarm is output when
inverter stops (pre-trip) consecutively 4 times. |
Recovery at restart |
1. Stops immediately when restarted. •Layer short in the
compressor 2. Check inverter control PCB. •Wiring trouble |
|
Remote controller alarm display
|
Alarm contents |
Judgment condition |
Clear condition |
Judgment and correction |
P29 |
Current detection circuit trouble •AC current value is high
even when compressor is stopped. |
Inverter stops after alarm is detected. Alarm is output when
inverter stops (pre-trip) consecutively 4 times. |
Recovery at restart |
1. Stops immediately when restarted. •Layer short in the
compressor 2. Check inverter control PCB. •Wiring trouble |
Compressor motor output trouble, Inverter compressor
trouble, MDC trouble |
Inverter stops after alarm is detected. |
Recovery at restart |
1. Refrigerant cycle trouble, overload operation 2. Loose
screws and contact failure between HIC control PCB and radiating plate 3.
Cooling failure of radiating plate 4. Check outdoor unit PCB wiring.
|
Compressor does not run. (Overcurrent protection circuit
activates after a certain period of time following compressor start.)
|
Inverter stops after alarm is detected. |
Recovery at restart |
1. Compressor trouble (locked, etc.) •Replace the
compressor. 2. Compressor wiring trouble (missing phase) |
Compressor breakdown •Starts to operate but operating
frequency drops and compressor stops. |
Inverter stops after alarm is detected. |
Recovery at restart |
1. Check power voltage: AC 200 V ±20 V. 2. Refrigerant cycle
overload operation 3. Check AC current detection circuit. |
Inverter control PCB position detection circuit trouble
|
Inverter stops after alarm is detected. |
Recovery at restart |
Position detection circuit is activated even when the
compressor 3P connector is disconnected and the compressor operated. •
Replace the inverter control PCB. |
F04 |
Disconnection, open circuit, or short circuit in discharge
temp. sensor (TD) |
Sensor detection trouble (90°C or higher when 15 minutes
have elapsed after compressor stopped). (Open circuit) |
Automatic recovery |
1. Check discharge temp. sensor (TD). 2. Check outdoor unit
control PCB. |
F06 |
Disconnection, open circuit, or short circuit in outdoor
heat exchanger temp. sensor (C1) |
Open circuit or short circuit |
Automatic recovery |
1. Check outdoor heat exchanger temp. sensor (C1). 2. Check
outdoor unit control PCB. |
F07 |
Disconnection, open circuit, or short circuit in outdoor
heat exchanger temp. sensor (C2) |
Open circuit or short circuit |
Automatic recovery |
1. Check outdoor heat exchanger temp. sensor (C2). 2. Check
outdoor unit control PCB. |
F08 |
Disconnection, open circuit, or short circuit in outdoor air
temp. sensor (TO) |
Open circuit or short circuit |
Automatic recovery |
1. Check outdoor air temp. sensor (TO). 2. Check outdoor
unit control PCB. |
F12 |
Disconnection, open circuit, or short circuit in intake
temp. sensor (TS) |
Open circuit or short circuit |
Automatic recovery |
1. Check intake temp. sensor (TS). 2. Check outdoor unit
control PCB. |
Remote controller alarm display
|
Alarm contents |
Judgment condition |
Clear condition |
Judgment and correction |
|
F31 |
EEPROM trouble |
Reading/writing failure |
Recovery at power reset |
1. Check EEPROM (IC901). 2. Check outdoor unit control PCB.
|
L02 |
Mismatch of indoor and outdoor unit types (Espacio, Multi,
GHP) |
Indoor unit judges that type does not match outdoor unit
type. |
Recovery at power reset |
1. Check indoor unit EEPROM. 2. Check indoor unit control
PCB. |
L04 |
Settings failure |
Duplicated outdoor unit address (system address)
|
Automatic recovery |
1. Check outdoor unit system address. 2. Check inter-unit
control wiring. |
L07 |
Settings failure |
Group control wiring is connected to an independent-control
indoor |
Recovery at power reset |
1. Check inter-unit control wiring. 2. Check indoor unit
EEPROM. |
L10 |
Settings failure |
Outdoor unit capacity not set. |
Recovery at power reset |
Check outdoor unit EEPROM. |
L13 |
Indoor-outdoor unit types |
Outdoor unit judges that type does not match indoor unit
type. |
Recovery at power reset |
1. Check indoor unit EEPROM. 2. Check outdoor unit control
PCB. |
E06 |
Outdoor unit detected abnormal signal from indoor unit.
|
Serial signal receiving failure (including failure to verify
No. of units) |
Automatic recovery |
1. Check inter-unit control wiring. 2. Check outdoor unit
|
E07 |
Outdoor unit sending failure to indoor unit |
Serial signal sending failure |
Automatic recovery |
1. Check inter-unit control wiring. 2. Check outdoor unit
control PCB. |
E14 |
Settings failure |
Duplicated master unit in simultaneous-operation multi
control (Detected by outdoor unit) |
Recovery at power reset |
1. Check inter-unit control wiring. 2. Check indoor unit
combination. |
|
E15 |
Automatic address setting failure |
Indoor unit capacity too low. |
Recovery at power reset |
1. Check inter-unit control wiring. 2. Check outdoor unit
control PCB. |
|
E16 |
Automatic address setting failure |
Indoor unit capacity too high. |
Recovery at power reset |
1. Check inter-unit control wiring. 2. Check outdoor unit
control PCB. |
|
E20 |
Automatic address setting failure |
Outdoor unit cannot receive any serial signals from indoor
units. |
Recovery at power reset |
1. Check inter-unit control wiring. 2. Check outdoor unit
control PCB. |
|
E31 |
Communications trouble within unit |
No communication possible with MDC for 3 minutes or longer.
|
Automatic recovery |
Check outdoor unit control PCB. |
|
H01 |
Overcurrent |
Inverter stops after alarm is detected. |
Recovery at restart |
1. Refrigerant cycle trouble, overload operation 2. Loose
screws between HIC control PCB and radiating plate 3. Cooling failure of
radiating plate 4. Check outdoor unit PCB wiring. |
|
SPW-XDR124GH56 X 2 / SPW-CR254GV56 SPW-TDR124GH56 X 2 /
SPW-CR254GV56
SPW-XDR124GH56 X 2 / SPW-CR254GVH56 SPW-TDR124GH56 X 2 /
SPW-CR254GVH56
SPW-XDR124GH56 X 4 / SPW-CR484GV56 SPW-TDR124GH56 X 4 /
SPW-CR484GV56
SPW-XDR124GH56 X 4 / SPW-CR484GVH56 SPW-TDR124GH56 X 4 /
SPW-CR484GVH56
SPW-XDR164GH56 X 3 / SPW-CR484GV56 SPW-TDR164GH56 X 3 /
SPW-CR484GV56
SPW-XDR164GH56 X 3 / SPW-CR484GVH56 SPW-TDR164GH56 X 3 /
SPW-CR484GVH56
SPW-XDR184GH56 X 2 / SPW-CR364GV56 SPW-TDR184GH56 X 2 /
SPW-CR364GV56
SPW-XDR184GH56 X 2 / SPW-CR364GVH56 SPW-TDR184GH56 X 2 /
SPW-CR364GVH56
SPW-XDR254GH56 / SPW-CR254GV56 SPW-TDR254GH56 / SPW-CR254GV56
SPW-XDR254GH56 / SPW-CR254GVH56 SPW-TDR254GH56 / SPW-CR254GVH56
SPW-XDR254GH56 X 2 / SPW-CR484GV56 SPW-TDR254GH56 X 2 /
SPW-CR484GV56
SPW-XDR254GH56 X 2 / SPW-CR484GVH56 SPW-TDR254GH56 X 2 /
SPW-CR484GVH56
SPW-XDR364GH56 / SPW-CR364GV56 SPW-TDR364GH56 / SPW-CR364GV56
SPW-XDR364GH56 / SPW-CR364GVH56 SPW-TDR364GH56 / SPW-CR364GVH56
SPW-XDR484GH56 / SPW-CR484GV56 SPW-TDR484GH56 / SPW-CR484GV56
SPW-XDR484GH56 / SPW-CR484GVH56 SPW-TDR484GH56 / SPW-CR484GVH56
SPW-UR124GH56 X 2 / SPW-CR254GV56 SPW-KR124GH56 X 2 /
SPW-CR254GV56
SPW-UR124GH56 X 2 / SPW-CR254GVH56 SPW-KR124GH56 X 2 /
SPW-CR254GVH56
SPW-UR124GH56 X 4 / SPW-CR484GV56 SPW-KR124GH56 X 4 /
SPW-CR484GV56
SPW-UR124GH56 X 4 / SPW-CR484GVH56 SPW-KR124GH56 X 4 /
SPW-CR484GVH56
SPW-UR164GH56 X 3 / SPW-CR484GV56 SPW-KR164GH56 X 3 /
SPW-CR484GV56
SPW-UR164GH56 X 3 / SPW-CR484GVH56 SPW-KR164GH56 X 3 /
SPW-CR484GVH56
SPW-UR184GH56 X 2 / SPW-CR364GV56 SPW-KR184GH56 X 2 /
SPW-CR364GV56
SPW-UR184GH56 X 2 / SPW-CR364GVH56 SPW-KR184GH56 X 2 /
SPW-CR364GVH56
SPW-UR254GH56 / SPW-CR254GV56 SPW-KR254GH56 / SPW-CR254GV56
SPW-UR254GH56 / SPW-CR254GVH56 SPW-KR254GH56 / SPW-CR254GVH56
SPW-UR254GH56 X 2 / SPW-CR484GV56 SPW-KR254GH56 X 2 /
SPW-CR484GV56
SPW-UR254GH56 X 2 / SPW-CR484GVH56 SPW-KR254GH56 X 2 /
SPW-CR484GVH56
SPW-UR364GH56 / SPW-CR364GV56
SPW-UR364GH56 / SPW-CR364GVH56
SPW-UR484GH56 / SPW-CR484GV56
SPW-UR484GH56 / SPW-CR484GVH56