(Check code detected by main 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.
Check code
Display of receiving unit
Typical problem site Description of check code
Main remote
controller
Outdoor 7-segment display Indicator light block
Sub-code
Flash
E01 – –
No master remote controller,
troubled remote controller
communication (reception)
Signals cannot be received from indoor unit;
master remote controller has not been set
(including two remote controller control).
E02 – –
Trouble remote controller
communication (transmission)
Signals cannot be transmitted to indoor unit.
E09 – –
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 problem site Description of check code
TCC-LINK central
control
Outdoor 7-segment display Indicator light block
Sub-code
Flash
C05 – –
No indication (when
main remote controller
also in use)
Troubled central control
communication (transmission)
Central control device is unable to transmit
signal due to duplication of central control
device.
C06 – –
Troubled central control
communication (reception)
Central control device is unable to receive
signal.
sretpada krowten elpitluM–––
Multiple network adapters are connected
to remote controller communication line.
–––21C
Blanket alarm for general-
purpose device control
interface
Device connected to general-purpose
device control interface for TCC-LINK is
faulty.
P30 – –
As per alarm unit (see
above)
Group control follower
unit trouble
Group follower unit is troubled (unit No. and
above detail [ ] displayed on main
remote controller)
Operation
Timer Ready
Operation
Timer Ready
− 137 −
Check code
Display of receiving unit
Typical problem site Description of Check code
Outdoor 7-segment display Indicator light block
Sub-code
Flash
Operation
Timer Ready
TCC-LINK central
control or main
remote controller
display
ALT––P01
Indoor AC fan trouble
Indoor AC fan trouble is detected (activation of
fan motor thermal relay).
P10 P10
Detected indoor unit No.
ALT
Indoor overflow trouble
Float switch has been activated.
ALT––P12
Indoor DC fan trouble
Indoor DC fan trouble (e.g. overcurrent or lock-up)
is detected.
ALT––P31
Other indoor unit trouble
Follower unit cannot be operated due to header unit
alarm (E03/L03/L07/L08).
List
of Check Codes (Indoor Unit)
(
Check code
detected by
indoor unit)
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