Sharp AE-XM24HR, Service Manual, Page: 27 / 50

3 – 10
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Open
circuit
of
the
outdoor
thermistor
Replace
the
thermistor.
Replace
the
fan
moto
r.
Replace
the
o
utdoor
control
P
WB.
Replace
the
Compressor.
Replace
the
IPM
PWB.
Replace
the
current
transformer
Connect
CN6.
Overheat
of
the
compre
ssor
Is
CN3
connected
?
Is
CN2
connected
?
Check
the
voltage
(15V).
Check
the
voltage
(15V).
Check
the
voltage
(5V).
Replace
the
IPM
PWB
Connect
CN3
Connect
CN2
Check
the
FUSE
5
AC
overcurrent
Rotation
error
o
f
the
compressor
Power
module
PWB
(IPM)
abnormality
Abnormal
AC
current
Open
circuit
of
serial
s
ignal
line
Short
circuit
of
serial
s ignal
line
Power
factor
module
(AF1)
error
Replace
the
Power
factor
module
(AF1)
Are
4
LED
switched
off
?
Is
CN6
connected
?
The
cycle
is
abnormal
.
The
compressor
is
abnormal.
P-U
,N-U
P-V
,N-V
P-W
,N-W
A
Is
the
resistance
value
of
the
ther
-
mistor
for
the
com-
pressor
(TH1),
heat
ex-changer
(TH2)
or
outdoor
temper-
ature
(TH3)
or
suc-
tion
(TH4,
TH6-9)
correct?
Is
each
of
the
resist-
ance
values
among
the
terminals
of
the
IPM
PWB
0
?
P-U
,N-U
P
-V,
N
-V
P-W
,N-W
Is
each
of
the
resista
nce
values
among
the
termi
-
nals
of
the
IPM
PWB
0
?
Is
the
IPM
PWB
in
a
state
o
f
floating
from
the
h
eat
sink
?
Fix
the
IPM
PWB
w
ith
screws
securely.
Is
the
w
inding
of
the
current
transformer
㧔%6
broken
?
Is
the
resistance
value
o
f
the
winding
in
the
current
trans
-
former
㧔%6
?
(720
)
Is
the
Power
factor
module
in
a
state
o
fflaoting
from
the
h
eatsink?
Fix
the
Power
factor
module
w
ith
screws
secuerly
Is
the
resistance
value
among
the
terminal
o
f
the
Power
fac
-
tor
m
odule
(AF1)
0
?
Is
the
outdoor
fan
motor
operating
?
Inspect
the
compres
-
sor,
heat
exchanger
and
piping.
Is
the
resistance
value
between
5
and
8
of
fan
motor
0?