Ye
s
No
Ye
s
No
[F03]
Ye
s
No
Ye
s
No
[F01]
Ye
s
No
Ye
s
No
[F02]
[F04]
[F05]
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
Indoor
TCJ sensor
trouble
TCJ sensor Open/Short
Indoor
TC1 sensor
trouble
TC1 sensor Open/Short
TD1 sensor
trouble
TD1 sensor Open/Short
TD2 sensor
trouble
TD2 sensor Open/Short
[F06]
e
d
o
c
k
c
e
h
C
Check code name
TE1 sensor
trouble
Cause
TE1 sensor Open/Short
Indoor TC2
sensor
trouble
TC2 sensor Open/Short
Is TCJ
sensor connector
(CN102: Red) on indoor
P
.C. board normally
connected?
Is TC1
sensor connector
(CN100: Brown) on indoor
P
.C. board normally
connected?
Are characteristics
of
TCJ sensor resistance
value normal?
Are characteristics
of TC1
sensor
resistance
value normal?
Is TC2
sensor connector
(CN101: Black) on indoor
P
.C. board normally
connected?
Are characteristics of
TC2 sensor resistance
value normal?
Correct connection of
connector
.
Correct connection of
connector
.
Replace TC1
sensor
.
Replace TCJ
sensor
.
Correct connection of
connector
.
Replace TC2
sensor
.
Check indoor P
.C. board.
Failure
Replace
Check indoor main P
.C. board.
Failure
Replace
Check indoor P
.C. board.
Failure
Replace
*
See
“
Indoo
r
uni
t
temperature
sen
sor characteri
stics” on
“8-
10
. Sensor Characteristics”.
*
See
“
Indoo
r unit
temperature
sen
sor characteri
stics” on
“8-
10
. Sensor Characteristics”.
* See
“I
ndoor unit temperature
sen
sor characteristics”
o
n
“8
-
10
. Senso
r
Characteristics”.
This
check
code
mea
ns detection
of
Open/Short
of
TD1
se
nsor.
Check disconnec
tion
of circuit
for connection
of
connector
(
TD1
sen
sor: CN502, White) and characteristics of
sensor
resistance value. (See “Outdoor unit
tempe
rature
sensor characteristics” on
“8
-
10
. Sensor
Characteristics”.)
If se
nso
r
is no
rm
a
l,
re
pla
ce o
utd
oo
r
I/F P.
C.
bo
ar
d.
This
check
code
mea
ns detection
of
Open/Short
of
TD2
se
nsor.
Check disconnec
tion
of circuit
for connection
of
connector (TD2
sen
sor: CN503, Pink) and characteristic
s
of sensor resistance value.
(S
ee “Outdoor unit
tempe
rature
sensor characteristics” on
“8
-
10
. Sensor
Characteristics”.)
If se
nso
r
is no
rm
a
l,
re
pla
ce o
utd
oo
r
I/F P.
C.
bo
ar
d.
This
check
code
mea
ns detection
of
Open/Short
of TE1
sensor. Check disconnection
o
f
circuit for conne
ction
of
connector (TE1 sensor:
CN520,G
r
een
)
and characteristics of
sensor resistance value.
(See “O
utdoor unit
temperature
sensor characteristics” on
“8
-
10
. Sensor
Characteristics”.)
If sensor
is normal,
re
place outdoo
r
I/F P.C.
bo
ard.
- 160 -
