112
H06
–
H06
Activation of low-pressure
protection
Low pressure (Ps) sensor detects abnormally low
operating pressure.
M
I
S
4
0
L
–
4
0
L
Duplicated outdoor
refrigerant line address
Identical refrigerant line address has been
assigned to outdoor units belonging to different
refrigerant piping systems.
L06
Number of priority indoor units
(check code L05 or L06 depending
on individual unit)
M
I
S
5
0
L
Duplicated priority indoor
unit (as displayed on
priority indoor unit)
More than one indoor unit has been set up as
priority indoor unit.
M
I
S
6
0
L
Duplicated priority indoor
unit (as displayed on
indoor unit other than
priority indoor unit)
More than one indoor unit has been set up as
priority indoor unit.
M
I
S
)
8
0
L
(
–
8
0
L
Indoor group address not
set
Address setting has not been performed for one or
more indoor units (also detected at indoor end).
t
e
s
t
o
n
y
ti
c
a
p
a
c
r
o
o
d
t
u
O
M
I
S
0
1
L
–
0
1
L
Outdoor unit capacity has not been set (after P.C.
board replacement).
M
I
S
)
0
3
L
(
.
o
N
t
i
n
u
r
o
o
d
n
i
d
e
t
c
e
t
e
D
0
3
L
Indoor external error input
(interlock)
Indoor unit has been shut down for external error
input in one refrigerant line (detected by indoor unit).
T
L
A
3
0
P
–
3
0
P
Outdoor discharge (TD)
temperature error
Outdoor discharge temperature sensor (TD) has
detected abnormally high temperature.
P05
T
L
A
5
0
P
Inverter DC voltage is too high (overvoltage) or too
low (undervoltage).
–
Inverter DC voltage (Vdc)
error
T
L
A
7
0
P
–
7
0
P
Heat sink overheating
error
Temperature sensor built into IGBT (TH) detects
overheating.
w
o
lf
r
e
v
o
t
i
n
u
r
o
o
d
n
I
T
L
A
)
0
1
P
(
d
e
t
c
e
t
e
d
.
o
N
t
i
n
u
r
o
o
d
n
I
0
1
P
Indoor unit has been shutdown in one refrigerant
line due to detection of overflow (detected by
indoor unit).
T
L
A
3
1
P
–
3
1
P
Outdoor liquid backflow
detection error
State of refrigerant cycle circuit indicates liquid
backflow operation.
P15
01: TS condition
02: TD condition
n
o
it
c
e
t
e
d
k
a
e
l
s
a
G
T
L
A
5
1
P
Outdoor suction temperature sensor (TS) detects
sustained and repeated high temperatures that
exceed standard value.
T
L
A
9
1
P
–
9
1
P
4-way valve reversing
error
Abnormality in refrigerating cycle is detected
during heating operation.
T
L
A
0
2
P
–
0
2
P
Activation of high-pressure
protection
High pressure (Pd) sensor detects high pressure
that exceeds standard value.
Check code
Display of receiving unit
Typical fault site
Description of error
Outdoor 7-segment display
TCC-LINK
central control
or main remote
controller
display
Indicator light block
Sub-code
Flash
Operation Timer
Ready
r
o
r
r
e
M
O
R
P
E
E
r
o
o
d
t
u
O
M
I
S
1
3
F
–
1
3
F
Outdoor EEPROM is faulty (alarm and shutdown
for outdoor unit and continued operation for
follower unit).
H04
–
H04
Comp. case thermo
operation
The case thermo operation has been detected.
H05
–
H05
Outdoor discharge
temperature sensor (TD)
wiring error
Wiring / installation error or detachment of outdoor
discharge temperature sensor (TD) has been
detected.
s
U
D
P
I
f
o
r
e
b
m
u
n
n
i
r
o
r
r
E
M
I
S
9
2
L
9
2
L
There are insufficient number of IPDUs (P.C.
boards) in inverter box.
(*) Concerning the “00” auxiliary code
1) The wrong model setting for the interface
P.C. board was used when the board was
replaced with the service P.C. board.
2) The wrong model setting for the fan IPDU
P.C. board was used when the board was
replaced with the service P.C. board.
T
L
A
4
0
P
–
4
0
P
High-pressure SW is activated.
Activation of high-pressure
SW
In such a case, the sub-codes “04” to “0F”
for L29, which are not included in the table
above, may be displayed.
Fa
Comp.
n
01
02
03
Circle (O): Faulty IPDU
O
O
O
O
89
