Check code
Location
of
detection
Description System status
Check code detection
condition(s)
Check items (locations)
• 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-segment display
Check
code
Sub-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
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