7 - 18
7
7. Self-Diagnosis Function Table and Contents of Alarm Display
• Contents of alarm display on remote controller
For the remote controller, there are other alarm contents listed on the following table besides the alarm display on outdoor main unit
control P.C. board.
Wired remote
control display
Detected contents
<E01>
Remote controller is detecting error signal from indoor unit.
Indoor unit does not respond to remote controller.
<E02>
Remote controller is having error in sending serial
communication signal.
<<E03>> Remote controller does not respond to indoor unit.
E04
Remote controller is detecting error signal from outdoor
unit.
Outdoor unit does not respond to indoor unit.
E08
Improper setting
Indoor unit address is dupulicating.
<<E09>>
Two or more remote controllers are set as main on R1-R2
link.
E18 Indoor unit communication error in group control wiring
No response from sub indoor to the main indoor unit in
group control wiring.
<<L02>>
Improper setting
Indoor unit model does not match with the outdoor unit
model. (Multi-split/mini-split)
<L03>
Two or more indoor units are set as main in group control.
L07
Group control wiring is detected for indoor unit set as
individual control.
L08
Indoor unit address is not set.
<<L09>>
Capacity setting of indoor unit is not correct.
<<F01>>
Indoor unit sensor has failure
Indoor unit heat exchanger liquid temperature sensor has
failure. (E1)
<<F03>>
Indoor unit heat exchanger gas temperature sensor has
failure. (E3)
<<F10>>
Indoor suction air (room) temperature sensor has failure.
(TA)
<<F11>>
Indoor discharge air temperature sensor has failure. (BL)
<<P09>> Connection to the panel of indoor unit is not good.
<<P01>>
Activation of protective device for Indoor unit
Thermal protector for Indoor unit fan motor is activated.
<<P10>>
Float switch of drain pan safety is activated.
<<P11>>
Drain pump failure or locked rotor.
<<P12>>
Indoor unit fan inverter protection control is activated.
F29 EEPROM on indoor unit PCB has failure.
• The parentheses of << >> used in the table of alarm display does not affect anything the operation of other indoor units.
• The parentheses of < > used in the table of alarm display implies that there are two cases : according to the content of the symptom,
some affect the operation of other indoor units and others do not affect anything.
Alarm messages displayed on system controller
Serial
communication
errors
Mis-setting
Error in transmitting serial
communication signal
Indoor or main outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit and
system controller.
C05
Error in receiving serial
communication signal
Indoor or main outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit and
system controller.
CN1 is not connected properly.
C06
Activation of
protective
device
Protective device of sub
indoor unit in group control is
activated.
When using wireless remote controller or system controller, in order to
check the alarm message in detail, connect wired remote controller to
indoor unit temporarily.
P30
1. Alarm messages in << >> do not affect other indoor unit operations.
2. Alarm messages in < > sometimes affect other indoor unit operations depending on the fault.
00_290811_2WAY_Eng.indb 57 2017/6/1 14:14:41
Remote control display Alarm contents
E14 Two or more indoor units are set as main, in the group controlled indoor units.
E15 Fewer indoor units are found in Auto Addressing than the setting on outdoor PCB.
E16 More indoor units are found in Auto Addressing than the setting on outdoor PCB.
E18 No response from sub indoor to the main indoor unit in group control wiring.
E20 No indoor unit responded in Auto Addressing.
E31 Error in communication inside outdoor unit control box.
F01 Indoor unit heat exchanger liquid temperature sensor has failure. (E1)
F02 Indoor unit heat exchanger temperature sensor has failure. (E2)
F03 Indoor unit heat exchanger gas temperature sensor has failure. (E3)
F04 Compressor discharge temperature sensor has failure. (DISCH)
F06 Outdoor unit heat exchanger gas temperature sensor has failure. (EXG)
F07 Outdoor unit heat exchanger liquid temperature sensor has failure. (EXL)
F08 Outdoor temperature sensor has failure. (TO)
F10 Indoor suction air (room) temperature sensor has failure. (TA)
F11 Indoor discharge air temperature sensor has failure. (BL)
F12 Compressor inlet temperature sensor has failure. (SCT)
F14 Subcooling heat exchanger temperature sensor has failure. (SCG)
F16 High pressure sensor has failure. (HPS)
F17 Low pressure sensor has failure. (LPS)
F29 EEPROM on indoor unit PCB has failure.
F31 EEPROM on outdoor unit PCB has failure.
H01 Compressor primary current is overcurrent.
H02 PFC is overcurrent or VDC is overvoltage. (Single phase only)
H03 Compressor current sensor is disconnected or shorted.
H05 Compressor discharge temperature sensor is disconnected, shorted or misplaced. (DISCH)
H06 Low pressure sensor value is too low.
H31 Compressor HIC has failure. HIC is overcurrent or overheat. VDC is undervoltage or overvoltage.
L01
Indoor unit address setting has error. (No main indoor unit in group control.)
L02
Indoor unit model does not match with the outdoor unit model. (Multi-split/mini-split)
L03
Two or more indoor units are set as main in group control.
L04
Duplicate system address setting on outdoor units.
L05 Two or more indoor units are set as priority indoor unit (priority indoor unit).
L06 Two or more indoor units are set as priority indoor unit (non-priority indoor unit).
L07 Group control wiring is detected for indoor unit set as individual control.
L08 Indoor unit address is not set.
L09 Capacity setting of indoor unit is not correct.
L10 Capacity setting of outdoor unit is not correct.
L13 Indoor unit model does not match with outdoor unit.
L17 Model mismatch between outdoor units.
L18 4-way valve has failure.
P01 Thermal protector for Indoor unit fan motor is activated.
P03 Compressor discharge temperature is too high.
P04 High pressure swich is activated.
P05 AC power supply has abnormal.
P09 Connection to the panel of indoor unit is not good.
P10 Float switch of drain pan safety is activated.
P11 Drain pump failure or locked rotor.
P12 Indoor unit fan inverter protection control is activated.
P14 O
2
sensor has activated.
P16 Compressor secondary current is overcurrent.
P20 Too high load in refrigerant circuit.
P22 Outdoor unit fan motor has failure.
P29 Compressor start failure. Compressor is missing phase or reverse phase.
P31 Other indoor unit in group control has an alarm.
00_300268_2WAY_Eng.indb 59 2017/12/14 13:04:50
SM830258-01_欧州向け_1fan_mini_VRF.indb 18 18/02/14 8:59:53
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