– 47 –
Check code
Location
of
detection
De
s
cription
S
y
s
tem
s
tatu
s
Check code detection
condition(
s
)
Check item
s
(location
s
)
• Check connector
connection and wiring on
compressor P.C. board.
• Check for failure in
compressor (layer
shortcircuit).
• Check for failure in outdoor
P.C. board ( Compressor).
IPM,
Compressor
shortcircuit
protection
trouble
Compressor
P.C. board
1
∗
: Compressor
1 side
2
∗
: Compressor
2 side
All stop
Overcurrent is momentarily
detected during startup of
compressor.
P26
P26
Main
remote
controller
Outdoor 7-
s
egment di
s
play
Check
code
S
ub-code
• Check wiring and
connector connection.
• Check for compressor
layer short-circuit.
• Check for failure in
compressor P.C. board.
Compressor
position
detection circuit
trouble
Compressor
P.C. board
1
∗
: Compressor
1 side
2
∗
: Compressor
2 side
All stop
Position detection is not
going on normally.
P29
P29
• Check indoor P.C. board.
Other indoor
trouble
(group follower
unit trouble)
Indoor unit
Stop of
corresponding
unit
There is trouble in other
indoor unit in group,
resulting in detection of
E07/L07/L03/L08.
P31
—
—
• Check fan motor.
• Check for failure in fan
P.C. board.
• Check connection of fan
motor connector.
• Check power voltage of
the main power supply.
Outdoor fan
P.C. board
trouble
Fan INV.
P.C. board
1
∗
: Fan P.C.
board 1
2
∗
: Fan P.C.
board 2
All stop
Protected operation of Fan
inverter P.C. board
P22
P22
Check code
Location
of
detection
De
s
cription
S
y
s
tem
s
tatu
s
Check code detection
condition(
s
)
Check item
s
(location
s
)
• Check for failure in central
control device.
• Check for failure in central
control communication line.
• Check termination
resistance setting.
Central control
device
transmission
trouble
Central
control
device
Continued
operation
Central control device is
unable to transmit signal.
C05
—
Main
remote
controller
Outdoor 7-
s
egment di
s
play
Check
code
S
ub-code
• Check for failure in central
control device.
• Check for failure in central
control communication line.
• Check terminator resistor
setting.
• Check power supply for
devices at other end of
central control
communication line.
• Check failure in P.C.
boards of devices at other
end of central control
communication line.
Central control
device reception
trouble
Central
control
device
Continued
operation
Central control device is
unable to receive signal.
C06
—
• Check trouble input.
Batch alarm
for general-
purpose
device
control interface
General-
purpose
device
I/F
Continued
operation
Trouble signal is input to
control interface for general-
purpose devices.
C12
—
• Check check code of unit
that has generated alarm.
Group control
follower unit
trouble
Central
control
device
Differs according to
nature of alarm-causing
trouble
Continued
operation
Trouble occurs in follower
unit under group control.
([P30] is displayed on central
control remote controller.)
P30
• Check address settings.
Duplicated
central control
address
(L20 displayed.)
Continued
operation
There is duplication in
central control addresses.
Check codes Detected by Central Control Device
