Remote control display Alarm contents
H11 Compressor 2 abnormal current values (Overcurrent)
H13 Compressor 2 CT sensor disconnected, short-circuit
H15 Compressor 2 discharge temperature sensor disconnected
H21 Compressor 2 HIC alarm
H27 Oil sensor (connection) error 2
H31 Compressor 1 HIC alarm
L04 Outdoor unit address settings duplicated
L05 Indoor unit priority duplicated (For priority indoor)
L06 Indoor unit priority duplicated (Not for priority indoor) and outdoor unit
L10 Outdoor unit capacity settings not made
L17 Inconsistencies in outdoor unit models
L18 4-way valve coil disconnected, line disconnected
P03 Compressor 1 discharge temperature error
P04 Actuation of high pressure switch
P05 Compressor 1 open phase detection
P11 Cooling water freeze (chiller)
P14 Actuation of O
2
sensor
P15 Compressor 2 open phase detection
P16 Compressor 1 secondary overcurrent
P17 Compressor 2 discharge temperature error
P19 Compressor 2 wiring open phase, start failure caused by DCCT failure (DC compressor start failure)
P20 High load (Forgot to open valves)
P22 Outdoor unit fan1 failure (IPM damage, overcurrent, invertor failure, DC fan lock, hole IC open phase)
P23 Inter lock not cancellation (chiller)
P24 Outdoor unit fan2 failure (IPM damage, overcurrent, invertor failure, DC fan lock, hole IC open phase)
P26 Compressor 2 secondary overcurrent
P29 Compressor 1 wiring open phase, start failure caused by DCCT failure (DC compressor start failure)
• 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
unit control board.
Table 9
Wired remote
control display
Detected contents
<E01>
Remote controller detects abnormal signal transmitted
from the indoor unit.
• Failure of remote controller to receive.
(For group control, signal from the main unit.)
• No setting of system address, indoor unit address,
indoor unit individualization / main / sub
(Auto address setting not completed.)
<E02> Remote controller not connected properly.
<<E03>> Indoor unit failed to receive serial signal by remote controller (or central controller).
E04
Indoor unit detects abnormal signal from outdoor main
unit control P.C. board.
• Receiving failure of remote controller
(For group control, signal from the main unit.)
• Inconsistencies in number of connected units and setting
units when outdoor unit is turned ON power.
(Excepting the system address “0”)
E08
Setting failure
Indoor unit address settings duplicated
<<E09>> Main remote control settings duplicated
E18 Indoor unit communication error in group control wiring
Main indoor unit failed to receive serial signal from sub
indoor unit.
<<L02>>
Setting failure
Indoor unit connected to multiple outdoor units is not for
multiple type.
<L03> Main unit settings duplicated in group control indoor units
L07
Group control wiring connected to individual control indoor
unit
L08 Indoor unit address settings not made
<<L09>> Indoor unit capacity settings not made
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