30
55
Remote control display
A
larm contents
E20
No indoor unit during auto address setting
E30
F
ailure of transferring outdoor unit serial
F04
Compressor discharge temperature sensor abnormal
[DISCH]
F06
O
utdoor unit heat exchanger gas (inlet) temperature sensor abnormal
[EXG]
F07
O
utdoor unit heat exchanger liquid (outlet) temperature sensor abnormal
[EXL]
F08
O
utdoor air suction temperature sensor abnormal
[TO]
F12
Compressor inlet temperature sensor abnormal
[SCT]
F16
High pressure sensor abnormal, high-load
[HPS]
F17
Low pressure sensor abnormal
[LPS]
F31
O
utdoor unit nonvolatile memory (EEPROM) error
H01
Compressor abnormal current values (Overcurrent)
H03
Compressor CT sensor disconnected, short-circuit
H05
Compressor discharge temperature sensor disconnected
H06
Low pressure abnormal lowering
H08
Oil sensor (connection) error
[OIL]
H31
Compressor HIC alarm (Check for alarm P29)
L04
O
utdoor 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
O
utdoor unit capacity settings not made
L18
4-way valve coil disconnected, line disconnected
P03
Compressor discharge temperature error
P04
Actuation of high pressure switch
P05
Compressor open phase detection
P14
Actuation of O
2
sensor
P16
Compressor secondary overcurrent
P20
High load (Forgot to open valves)
P22
O
utdoor unit fan failure (IPM damage, overcurrent, invertor failure, DC fan lock, hole IC open phase)
P29
Compressor wiring open phase, start failure caused by DCCT failure (DC compressor start failure)
00̲280220̲2WAY̲Eng.indb 55
2016/06/09 18:11:26
56
••
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 ma
in unit
control P
.C. board.
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
<<F01>>
Indoor unit thermistor failure
Heat exchanger temperature sensor E1
<<F03>>
Heat exchanger temperature sensor E3
<<F10>>
Inlet temperature sensor
<<F11>>
Outlet temperature sensor
<<P09>>
Connection failure of ceiling panel or connector
<<P01>>
Indoor unit protection
Fan protection thermostat
<<P10>>
Float switch
<<P11>>
Faulty drain pump. Drain pump locked.
<<P12>>
Actuation of fan invertor protecting function
F29
Nonvolatile memory IC (EEPROM) failure on indoor unit control P.C. board
••
The parentheses of << >> used in the table of alarm display does not af
fect 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 sy
mptom,
some af
fect the operation of other indoor units and others do not af
fect 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
NO
TE
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.
00̲280220̲2WAY̲Eng.indb 56
2016/06/09 18:11:26
00̲280434̲Mini̲VRF̲Mentsuke.indb 30
00̲280434̲Mini̲VRF̲Mentsuke.indb 30
2016/06/16 11:37:49
2016/06/16 11:37:49