S
ams
u
ng
El
ectronics
4-2
9
Indoor unit display
4
way
X (
Operation)
X (
Defrost)
(T
imer)
X (F
i
l
ter)
1
way
X (
Operation)
X (
Defrost)
X (
Reser
v
ation)
(F
an)
X (F
i
l
ter)
Symptom
I
ndoor
u
nit
fan
does
not
r
u
n
/
R
u
ns
at
e
x
cessi
v
e
high
speed
and
stops
Failure
Chec
k
if
the
motor
connector
is
disconnected
/
chec
k
the
motor
fan
assemb
l
y
stat
u
s
4-4-3 Indoor FAN error (E154)
Chec
k
the
norma
l
operation.
No
I
s
the
motor
connector
(
CN73)
disconnected
from
the
PCB
?
Connect
the
connector
to
PCB
Y
es
No
Does
the
motor
rotates
when
operating
?
Motor
ᐯ׳ᐱ
:
*TWPMUBHFPG%$7_%$7EJTQMBZFE
Chec
k
the
PCB
and
rep
l
ace
it
I
s
the
RPM
of
motor
l
ess
than
12
0
?
Y
es
D
u
ring
operation
or
Operation
at
the
beginning
:
E1
5
4
is
disp
l
ayed.
No
Chec
k
the
motor
and
rep
l
ace
it.
Y
es
Ex
)
Depending
on
F
AN
RPM
, v
o
l
tage
of
%$7_%$7JTPVUQVU
↓ ↓
1 2 3 4 5 6
[ 4-way cassette type ]
Chec
k
the
norma
l
operation.
No
I
s
the
motor
connector
(
CN73
or
CN
44
)
disconnected
from
the
PCB
?
Connect
the
connector
to
PCB.
Y
es
No
[
After
the
start
of
operation
of
F
AN
]
Motor
ᐯ׳ᐱ
:
I
s
v
o
l
tage
of
AC
22
0
V
disp
l
ayed
?
Chec
k
the
PCB
and
rep
l
ace
it.
Y
es
Chec
k
the
motor
and
rep
l
ace
it.
[1 way cassette type]
