168
(Error detected by main remote controller)
(Error detected by central control device)
Note: The same error, e.g. a communication error, 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.
Check code
Display of receiving unit
Typical fault site Description of error
Main
remote
controller
AI-NET central
control display
(with use of
network
adaptor)
Outdoor 7-segment display Indicator light block
Sub-code
Flash
E01 97 – –
No master remote controller,
faulty remote controller
communication (reception)
Signals cannot be received from indoor unit;
master remote controller has not been set
(including two remote controller control).
E02 – – –
Faulty remote controller
communication (transmission)
Signals cannot be transmitted to indoor unit.
E09 99 – –
Duplicated master remote
controller
Both remote controllers have been set as
master remote controller in two remote
controller control (alarm and shutdown for
header unit and continued operation for
follower unit)
Check code
Display of receiving unit
Typical fault site Description of error
TCC-LINK
central
control
AI-NET central
control display
(with use of
network
adaptor)
Outdoor 7-segment display Indicator light block
Sub-code
Flash
C05 98 – –
No indication (when
main remote controller
also in use)
Faulty central control
communication (transmission)
Central control device is unable to transmit
signal due to duplication of central control
device (AI-NET).
C06 97 – –
Faulty central control
communication (reception)
Central control device is unable to receive
signal.
– 99 – – Multiple network adapters
Multiple network adapters are connected to
remote controller communication line (AI-
NET).
C12 23 – – –
Blanket alarm for general-
purpose device control
interface
Device connected to general-purpose device
control interface for TCC-LINK/AI-NET is
faulty.
P30 b7 – –
As per alarm unit (see
above)
Group control follower unit
error
Group follower unit is faulty (unit No. and
above detail [###] displayed on main remote
controller)
Operation
Timer Read