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Alarm messages displayed on system controller
Indoor or main outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit
and system controller.
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.
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.
Error in transmitting serial
communication signal
Error in receiving serial
communication signal
Protective device of sub indoor
unit in group control is activated.
Serial
communication
errors
Mis-setting
Activation of
protective
device
C05
C06
P30
NOTE
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.