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Troubleshooting
12-2-6 In case of heating at the cooling mode or cooling at the heating mode
1
.
Troubles
h
oo
tin
g pro
c
edure
Is
th
e T
h
ermo o
Is
th
e u
in th
e de
f
r os
tin
Is
th
e
c
ompressor
in 3
m
in
u
I
n
door opera
ti
Is mu
ch f
in th
e
h
ea
t
ex
Does
4 way valve opera
n
ormally?
Go
t
o
th
e
n
1
2
-
7
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ff
?
No
nit
g opera
ti
o
n
?
No
t
es o
ff
?
No
o
n
SW
i
s o
n.
Yes
Yes
r os
t
ch
a
n
ger?
No
th
e
No
t
e
ex
t
page
Yes
C
h
a
n
ge
th
Yes
Opera
t
e
as soo
n
as
Yes
A
ft
er
a
n
d
h
ea
No
Is
th
e
ou
t
door a
i
r se
n
sor a
n
d
ou
t
door
h
ea
t
ex
ch
a
n
ger a
tt
a
ch
ed
c
orre
ct
ly?
Yes
Is
th
e
4 way valve
c
o
nn
e
ct
or
c
o
nn
e
ct
ed
c
orre
ct
ly?
Yes
C
h
e
c
k
th
e res
i
s
t
a
nc
e value
o
f
4 way valve
c
o
i
l
.
OK
Dose
th
e
vol
t
age o
f
AC
220
V
apply
t
o
th
e
c
o
nn
e
ct
or o
f
4 way
valve
c
o
i
l dur
in
g
th
e
opera
ti
o
n
?
Yes
4 way valve ma
in
body error
e se
ttin
g
t
empera
t
ure o
f
remo
t
e
c
o
nt
rol
.
it
w
ith
a
h
ea
tin
g mode
th
e de
f
r os
tin
g
i
s
fini
s
h
ed
.
3
m
in
u
t
es,
c
ool
in
g
tin
g s
t
ar
t
au
t
oma
tic
ally
.
Tur
n th
e SW O
n.
No
A
tt
a
ch th
e
se
n
sor
c
orre
ct
ly
.
Over s
h
or
t
age
o
f th
e re
f
r
i
gera
nt
No
Co
nn
e
ct th
e
c
o
nn
e
ct
er
c
orre
ct
ly
.
NG
4-WAY valve
c
o
i
l error
No
Ex
ch
a
n
ge
th
e ou
t
door PCB
.
Samsu
n
g Ele
ct
ro
nic
s
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