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6-2. Check Code List (Indoor)
(Indoor unit detected)
When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.
(Central control devices detected)
NOTE: Even for the same contents of error such as communication error, the display of check code may differ according to detection device.
When remote controller or central controller detects an error, it is not necessarily related to operation of the air conditioner. In this list, the check codes that outdoor unit detects are not described.
Explanation of error contents
No communication from remote controller and network adapter
(Also no communication from central control system)
There is error on serial communication between indoor and outdoor units
Same address as yours was detected.
MCU communication error between main motor and micro computer
Regular communication between indoor master and follower units is impossible.
Open/short was detected on heat exchanger (TCJ).
Open/short was detected on heat exchanger (TC).
Open/short was detected on room temp. sensor (TA).
EEPROM error (Other error may be detected. If no error, automatic address is repeated.
There are multiple master units in a group.
When even one group connection indoor unit exists in individual indoor unit.
Indoor group address is unset.
Capacity of indoor unit is unset.
Duplicated setting of central control system address
Abnormal stop by outside error (CN80) input
An error of indoor AC fan was detected. (Fan motor thermal relay worked.)
Float switch worked.
Indoor DC fan error (Over-current/Lock, etc.) was detected. Static pressure error set
In heating operation, an error was detected by temp. down of indoor heat exchanger sensor.
Follower unit in group cannot operate by warning from [E03/L03/L07/L08] of master unit.
Air conditioner operation
Automatic Operation
reset
continuation
{
×
{
×
{
×
{
×
{
×
{
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{
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{
×
××
××
××
××
××
{
×
××
××
××
××
{
×
{
×
Check code indication
TCC-LINK central
C05
C06
C12
P30
Representative defective position
Central control system communication (send) error
Central control system communication (receive) error
General-purpose device control interface batched warning
Group follower unit is defective.
Explanation of error contents
Signal sending operation of central control system is impossible. There are multiple same central devices. (AI-NET)
Signal receiving operation of central control system is impossible.
An error on device connected to general-purpose device control interface of exclusive to TCC-LINK/AI-NET
Group follower unit is defective. (For remote controller, above-mentioned [∗∗∗] details are displayed with unit No.)
Air conditioner operation
Automatic Operation
reset
continuation
——
——
——
——
Check code indication
Remote controller
E01
E02
E09
Representative defective position
No master remote controller, Remote controller communication (Receive) error
Remote controller communication (Send) error
Duplicated master remote controller
Explanation of error contents
Signal cannot be received from indoor unit. Master remote controller was not set. (including 2 remote controllers)
Signal cannot be sent to indoor unit.
In 2-remote controller control, both were set as master.
(Indoor master unit stops warning and follower unit continues operation.)
Air conditioner operation
Automatic Operation
reset
continuation
——
——
×
Check code indication
TCC-LINK central &
Remote controller
E03
E04
E08
E10
E18
F01
F02
F10
F29
L03
L07
L08
L09
L20
L30
P01
P10
P12
P19
P31
Representative defective position
Regular communication error between indoor and remote controller
Indoor/Outdoor serial error
Duplicated indoor addresses
Communication error between indoor MCU
Regular communication error between indoor master and follower units
Indoor unit, Heat exchanger (TCJ) error
Indoor unit, Heat exchanger (TC) error
Indoor unit, Room temp. sensor (TA) error
Indoor unit, other indoor P.C. board error
Duplicated setting of indoor group master unit
There is group cable in individual indoor unit.
Unset indoor group address
Unset indoor capacity
Duplicated central control system address
Outside error input to indoor unit (Interlock)
Indoor unit, AC fan error
Indoor unit, overflow detection
Indoor unit, DC fan error
4-way valve system error
Other indoor unit error
(Remote controller detected)