52
(Local remote controller)
(Central control device)
Note:
Even if the same error (e.g. communication error) has occurred, the check code may differ depending on the
device. If the error was detected by the local remote controller or central control device, the error does not
always affect the operations of the Air to Air Heat Exchanger with DX Coil Unit.
Check code
Typical cause of error
Description
Local remote
controller
7-segment display of
outdoor unit
Sub code
E01
–
–
No header remote controller, Remote
controller communication (reception) error
No signal can be received from the indoor unit. The header remote
controller has not been set (including double remote controllers).
E02
–
–
Remote controller communication
(transmission) error
No signal can be sent to the indoor unit.
E09
–
–
Duplicate header remote controllers
Two remote controllers are set as header in the double-remote
controller control. (The header indoor unit stops signaling an error,
and the follower indoor units continue running.)
Check code
Typical cause of error
Description
TCC-LINK
central
controller
7-segment display of
outdoor unit
Sub code
C05
–
–
Central control communication
(transmission) error
No central control signal can be sent.
There are multiple central devices. (AI-NET)
C06
–
–
Central control communication (reception)
error
No central control signal can be received.
–
–
–
Multiple network adapters
There are multiple network adapters on the remote controller
communication wire. (AI-NET)
C12
–
–
Simultaneous alarms for general-purpose
device control interface
An error occurred on a device connected to the general-purpose
device control interface for TCC-LINK / AI-NET.
P30
–
–
Follower unit error
An error occurred on the follower unit in the group.
([
] is displayed on the local remote controller)
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