– 47 –
(Check code detected by remote controller)
(Check code detected by central control device)
Note: The same trouble, e.g. a communication trouble, may result in the display of different check codes
depending on the device that detects it. Moreover, check codes detected by the main remote controller /
central control device do not necessarily have a direct impact on air conditioner operation.
Indoor unit (including Hot Water Module)
Check code
Typical trouble site Description of trouble
Outdoor 7-segment display
Sub-code
E01 – –
No master remote control,
failure remote control
communication (reception)
Signals cannot be received from indoor unit;
master remote control has not been set
(including two remote control).
E02 – –
Failure remote control
communication (transmission)
Signals cannot be transmitted to indoor unit.
E09 – –
Duplicated master remote
control
Both remote controls have been set as
master remote control in two remote control
(alarm and shutdown for header unit and
continued operation for follower unit)
Remote control
Check code
Typical trouble site Description of trouble
Central control
Outdoor 7-segment display
Sub-code
C05 – –
Failure central control
communication (transmission)
Central control device is unable to transmit
signal due to duplication of central control
device
C06 – –
Failure central control
communication (reception)
Central control device is unable to receive
signal.
C12 – –
Blanket alarm for general-
purpose device control
interface
Device connected to general-purpose device
control interface is trouble.
P30
(L20)
Communication Link––
• Duplication addresses of indoor units in
central control device
• With the combination of air conditioning
system, the indoor unit may detect the
check code of L20
To Next Page
Loading...
