137
Cau
se
Ch
eck co
de
na
me
Che
ck cod
e
PS sensor trouble
Output voltage trouble of PS sensor
(1)
Pr
es
su
re
(Chec
k j
oi
nt) by
press
ur
e g
auge
(2)
Pr
es
sur
e di
spl
ay
on 7
-s
egm
ent d
is
pla
y
(3
)
O
ut
pu
t vo
ltag
e of
I/F P.C.
board
If (1) and (2), (3) are dif
ferent, a failure of pressure
sens
or
its
el
f is
c
ons
ide
re
d.
If
(2
)
an
d
(3
)
ar
e
di
ffe
re
nt,
ch
eck
inter
fac
e P
.C. boa
rd
.
Is
co
nne
ctio
n o
f PS
se
ns
or
co
nn
ec
tor
co
rrec
t?
No
Ye
s
Are
ou
tpu
t
vo
lta
ge
cha
ra
ct
er
ist
ic
s
of PS sensor
norm
al?
No
Ye
s
Is there n
o leakage
fr
o
m
S
V
4 valv
e?
No
Yes
Repl
ace
SV
4 v
alv
e.
Chec
k
4-
way
val
ve
.
Ye
s
No
Co
rr
ec
t c
onne
ction o
f
conn
ec
tor.
C
hec
k
co
m
p
re
ss
or
Sen
sor failure
Re
pla
ce
Cause
Che
ck cod
e n
ame
Ch
eck
code
PD sensor trouble
Output voltage failure of PD sensor
It is output voltage failure of PD sensor. Check disconnection
of connection of connector (PD sensor: CN501, red)
circu
it an
d o
u
tp
ut
volta
ge
of
senso
r.
If th
e
senso
r is no
rm
al
, r
e
pla
ce o
u
td
oo
r
I/F P
.C. bo
a
rd
.
Con
nector
: CN
500, White
Is
n
ot
re
fri
ge
rant
by
pa
ss
ed
from
di
sc
har
ge
to
suc
tion
of
4-
way
val
ve?
Cause
Che
ck cod
e
name
Check
code
Indoo
r
ot
her
trouble
Indoo
r P
.C. b
oard trouble
Chec
k power
voltage
and li
n
e.
Corr
ect
power l
ine
.
C
he
ck
exte
rn
al
no
is
e,
et
c.
No
Yes
Is
the
re
any
tr
oub
le
of
out
doo
r u
nit
po
wer s
up
pl
y?
This trouble is detected during operation of air conditioner of
IC10
(
IC
50
3) non-volatile memory (EEPROM) on
in
do
or
u
n
it
P
.C.
bo
ar
d.
Re
pla
ce
se
rvice
P.
C.
bo
a
rd.
* I
f EE
P
ROM was
not
inser
ted
w
he
n
power was t
u
rned on or it is
absolutely impossible t
o
read
/ wr
ite
EE
PROM d
ata
, th
e a
uto
m
atic a
dd
re
ss mod
e is rep
ea
ted
.
[SE
T DATA]
is
d
is
pl
ay
ed
on remo
te
con
tr
oll
er
.
[S
ET DA
TA]
di
sa
pp
ea
rs
.
L
E
D (D02) 1
Hz
flas
hes
for ap
pr
o
x.
1
0 se
co
nds
on
in
do
or
u
ni
t
P
.C
.
bo
ar
d.
Reboo
t (Rese
t)
(R
ep
etit
ion)
Cause
Che
ck cod
e n
ame
Ch
ec
k c
od
e
Outdoo
r EEPROM trouble
1. O
utd
oor uni
t pow
er
e
rr
or (V
o
lta
ge, noi
se
, e
tc
.)
2. Outd
oor I/F P.
C. boa
rd
trouble
(Powe
r ON)
(A
p
pr
ox.
3 mi
nutes
)
(A
pp
ro
x. 1
mi
n
ute)
C
hec
k I/
F
P
.C. b
oard
Failure
Repl
ace
127
A10-1510.indb 127
A10-1510.indb 127
2016/04/08 17:21:13
2016/04/08 17:21:13
AMP Air Conditioning
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