8-2.
How to check
On the remote controller (Remote controller
, Centra
l control remote controller) and on the interf
ace
P.
C
. board of the outdoor
unit, LCD displa
y par
t (Remote controller) or 7-
segment displa
y par
t (on outdoor interf
ace
P.
C
. board) is pro
vided in order to displa
y the oper
ation status
.
When a troub
le occurred, the method to judge the troub
le or def
ectiv
e position of the air conditioner b
y this self-diagnosis fu
nction is sho
wn belo
w
.
The f
ollo
wing tab
le sho
ws the list of each chec
k code that each de
vice detects
. Chec
k the chec
k contents in the f
ollo
wing tab
le
according to position to be chec
ked.
•
Chec
k from the indoor remote controller or
TCC-LINK centr
al controller
: Ref
er to
“Displa
y on remote controller &
TCC-LINK cent
ral controller”
in the f
ollo
wing tab
le
.
•
Chec
k from outdoor unit:
Ref
er to
“Displa
y of outdoor segment”
in the f
ollo
wing tab
le
.
•
Chec
k from indoor unit of wireless remote controller
: Ref
er to Sensor lamp displa
y”
in the f
ollo
wing tab
le
.
Chec
k code displa
y list (Indoor unit)
[Indoor unit detects err
or
.]
(
∗
)
{
: Goes on,
: Flashes
,
z
: Goes off
A (Alter
nate)
: Flashing condition is alter
nate when there are tw
o flashing LED
.
S (Sim
ultaneously)
: T
w
o LED flash sim
ultaneously when there are two flashing LED
.
Note)
The chec
k code displa
y ma
y be diff
erent according to the detected de
vice e
ven same error contents such as comm
unication error
.
Sensor lamp displa
y
Bloc
k displa
y (
∗
)
Oper
ation
Timer
Ready
Flash
zz
zz
zz
zz
zz
z
A
z
A
z
A
z
A
z
A
z
S
z
S
z
S
z
S
z
S
{
S
{
S
z
A
z
A
z
A
z
A
Chec
k code displa
y
TCC-LINK central & remote contr
oller
E03
E04
E08
E10
E18
F01
F02
F03
F10
F11
F29
L03
L07
L08
L09
L20
L30
P01
P10
P12
P31
Outdoor 7-segment
A
uxiliar
y code
——
——
E08
Duplicated indoor unit No
.
——
——
——
——
——
——
——
——
——
——
L08
—
——
——
L30
Detected indoor unit No
.
——
P10
Detected indoor unit No
.
——
——
Main defective position
Regular communication error betw
een indoor
and remote controller
Regular communication error betw
een indoor
and outdoor
Duplicated indoor address
Comm
unication error betw
een indoor MCU
Regular communication error betw
een header
and f
ollo
w
er in indoor unit
Indoor heat e
xchanger temp
. sensor (TCJ) error
Indoor heat e
xchanger temp
. sensor (TC2) error
Indoor heat e
xchanger temp
. sensor (TC1) error
Room tem.
Sensor (T
A) error
Discharge air temp
. sensor (TF) error
.
Indoor or other P
.C
. board error
Duplicated setting of header in indoor g
roup
There is group cab
le in individual indoor unit.
Indoor group address is unset.
Indoor capacity is unset.
Duplicated centr
al control system address
Exter
nal error w
as input in indoor (Inter
loc
k).
Indoor A
C
fan error
Indoor o
verflo
w w
as detected.
Indoor DC f
an error
Other indoor unit error
Description
No comm
unication from remote controller and networ
k adapter
(No central control system comm
unication also)
No comm
unication from outdoor unit
An address same to self address w
as detected.
Comm
unication error betw
een MCU of main motor microprocessors
Regular comm
unication betw
een header and f
ollo
wer units in indoor unit w
as impossib
le
.
Open/shor
t of heat e
xchanger temp
. sensor (TCJ) w
as detected.
Open/shor
t of heat e
xchanger temp
. sensor (TC2) w
as detected.
Open/shor
t of heat e
xchanger temp
. sensor (TC1) w
as detected.
Open/shor
t of room temp
. sensor (T
A) w
as detected.
Open/shor
t of discharge air temp
. sensor w
as detected.
Indoor EEPR
OM error (Other error ma
y be detected.)
There were m
ultiple header units in a g
roup
.
There is e
ven an indoor unit connected to group in individual indoor unit.
Indoor group address is unset.
(Detected also at outdoor unit side)
Capacity of indoor unit is unset.
Setting of centr
al control system address is duplicated.
System abnor
mally stopped b
y input of e
xter
nal error (CN80).
Error of indoor A
C
can w
as detected.
(F
an motor ther
mal rela
y oper
ation)
Float s
witch oper
ated.
Error (Ov
er-current, loc
k, etc.) of indoor DC f
an w
as detected.
Group f
ollo
wer unit cannot be oper
ated b
y [E03/L03/L07/L08] alar
m of header unit.
FILE NO. SVM-18070
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