T
ro
u
b
l
eshootin
g
4-108
S
a
m
s
u
n
g
El
e
c
troni
c
s
1
.
Ju
d
g
m
ent
Method
T
ini
= Su
m
p
te
m
perat
u
re
w
hen
enterin
g
the
CH
operation
de
l
a
y
c
ondition
Tl
ast
= Su
m
p
te
m
perat
u
re
w
hen
m
aintainin
g
CH
operation
de
l
a
y
f
or
t
w
o
ho
u
rs
Ou
tside
A
ir
T
e
m
perat
u
re
S
ensor
V
a
lu
e
: Ou
tside
air
te
m
perat
u
re
w
hen
m
aintainin
g
CH
operation
de
l
a
y
f
or
t
w
o
ho
u
rs
①
Tl
ast
– T
ini
<
2
°C
②
Tl
ast
< Ou
tside
A
ir
T
e
m
perat
u
re
S
ensor
V
a
lu
e
+
2
°C
③
Ou
tside
A
ir
T
e
m
perat
u
re
S
ensor
V
a
lu
e
<
3
0°C
I
f
①
,
②
and
③
are
satis
f
ied
at
the
sa
m
e
ti
m
e
,
then
disp
l
a
y E44
5
.
Outdoor Unit Display
Indoor Unit Display
-
Judgment Method
t3FGFSUPUIFKVEHNFOUNFUIPECFMPX
Special Cause
t$$)$POOFDUPS1$#JTOPUDPOOFDUFE4VNQTFOTPSDPNQSFTTPSTFQBSBUFE0XOQSPCMFNPG$$)
No
C
onne
c
t
CCH
c
onne
c
tor
to
P
CB
.
I
s
the
CCH
c
onne
c
tor
c
onne
c
ted
to
P
CB?
Y
es
No
A
tta
c
h
the
s
u
m
p
sensor
to
the
l
o
w
er
part
o
f
the
c
o
m
pressor
.
I
s
the
s
u
m
p
sensor
atta
c
hed
to
the
l
o
w
er
part
o
f
the
c
o
m
pressor
?
Y
es
Y
es
Does
the
E44
5
error
o
cc
u
r
e
v
en
a
f
ter
the
o
u
tdoor
u
nit
po
w
er
is
p
u
t
b
a
ck
in
?
Y
es
C
han
g
e
P
CB
.
No
Nor
m
a
l O
peration
I
s
CCH
resistan
c
e
nor
m
a
l?
(
5
00
~
700Ω/
in
f
inite
f
or
dis
c
onne
c
tion
)
No
C
han
g
e
CCH
.
4-4-64 CCH M
a
lfunc
tio
n
a
n
d
Sump S
e
n
sor
M
is
w
iri
ng E
rror
