140
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
Du
pl
icat
ed
indo
or
out
doo
r u
nit
s
T
he
re
ar
e
two
or
m
o
re
ind
oor
outd
oor
un
its
in
a
gr
oup
d
uring
group cont
ro
l
1)
C
he
ck
wh
e
th
e
r
th
e
c
o
nn
e
ct
io
n
o
n
r
em
ot
e
co
nt
ro
lle
rs
(
g
ro
up
an
d
/
or
ind
iv
id
ua
l)
h
as
b
ee
n
ch
an
ge
d
si
nc
e
th
e
g
rou
p
co
nf
ig
u
rat
io
n
a
nd
add
ress
ch
eckin
g
o
n
th
e
re
mo
te
c
on
tro
ller
s
finish
ed
.
2)
If
th
e
g
ro
up
co
nf
ig
ur
at
io
n
an
d
ad
d
ress
ar
e
no
rma
l w
he
n
po
we
r
ha
s
been
tur
ne
d
on
, t
he
m
od
e
au
tom
at
ic
al
ly
shifts
to
add
ress se
tup
mod
e
. Fo
r sett
in
g u
p
a
dd
resses
ag
ain,
re
fer t
o "Ad
dress
se
tup
".
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
Duplicat
ed
set
up
of o
utd
oor
lin
e
add
ress
O
utdo
or
li
ne ad
dr
ess
es
ar
e du
pli
ca
ted
Cor
rect th
e wire
co
n
nect
io
n.
Ye
s
Ye
s
No
No
Cor
rec
t th
e li
ne a
ddres
s
setu
p.
Re-
se
t up t
he ad
dr
ess
.
(R
efer to "
Ad
dres
s setup
".)
Is
th
ere
d
up
lica
ted
li
ne
ad
dr
e
ss
se
tu
p?
Are
comm
un
ic
at
ion
wi
re
co
nne
ct
io
ns
of
[U1.
U2],
[U3.U
4]
no
rm
al
?
Chec
k o
utdoo
r
I/F P.C.
board.
F
a
ilur
e
Rep
lace
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
Du
p
lic
at
ed
in
do
or
un
its
w
ith
pr
iority
(D
is
pl
ay
ed
o
n
in
d
oo
r u
n
it
w
ith
priority)
T
w
o or
mo
re
pr
ior
indoo
r
u
nits
ex
is
t
Th
is
ch
eck
co
de
is
di
spl
ay
ed
o
n
th
e
in
do
or
un
it
set
as
a
pr
ior
o
ne
wh
en
two
o
r
mo
re
p
ri
or
ind
oo
r
u
ni
ts
a
re
de
te
ct
ed
.
P
ri
or
ity
setu
p with
two
or more
units
is
no
t ava
ilabl
e. As
onl
y
one
ind
oo
r u
nit
with
priority is v
alid, ch
an
ge
the
setu
p.
Low-p
ressure pro
te
ctive oper
ati
on
1.
Serv
ic
e v
alv
e closed
2.
PS sensor trouble
3.
SV2, SV4 circuit trouble
4.
M
is
w
ir
in
g
of
co
mmu
nic
ati
on
be
tween
indoo
r
an
d
outd
oor
5.
Indoo
r
/ outd
oor
fan
and c
on
denser trouble
6.
Indoo
r
/ outd
oor PM
V
cl
o
ggin
g
7.
In
doo
r
/ outd
oor
hea
t ex
ch
anger c
lo
gging
8.
Refrige
ra
nt shortag
e
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
A
re
se
rv
ic
e
va
lv
es
of
g
as
a
nd
liqui
d p
ipe
of
o
ut
doo
r u
ni
t fu
lly
ope
ned
?
Are
ch
a
rac
te
ri
st
ic
s
o
f
lo
w-
pr
es
su
re
se
n
so
r
no
rm
al
?
Are SV2 and SV4
ci
rcu
its
n
orm
al
?
Is
an
y i
nd
oor
un
it
in a
di
ffe
ren
t li
ne
co
nn
ec
te
d?
In
co
oli
ng s
eas
on
, go t
o (A)
In
he
at
in
g s
eas
on, g
o to
(B
)
*
1. P
re
ss
ure by
pres
su
re
gaug
e (Chec
k j
oi
nt)
2. P
re
ss
ure di
sp
lay
on
7-
seg
ment
dis
pl
ay
3. O
utpu
t v
olta
ge of
I/F P.C.
board
If 1 and 2, 3 are different, a failure of pressure sensor is c
onsidered.
If 2 a
nd 3
are diffe
rent,
ch
ec
k
I/F
P.
C
. b
oa
rd
.
Ch
ec
k m
is
w
iring
, mi
si
ns
tall
ati
on a
nd c
onne
cto
r c
onn
ec
tion
.
(Che
ck
wit
h mi
swi
rin
g
che
ck
func
tion of
outd
oor uni
t.)
No
No
No
Yes
O
p
en
se
rv
ic
e
va
lv
es
ful
ly
.
Ex
ch
ange
low-
pr
es
su
re
se
nso
r.
Correct SV2 and SV4
circuits
Corre
ct w
iring
.
No
Ye
s
Ye
s
Ye
s
Repair failure parts.
Repair failure parts.
Repl
ac
e PM
V
bo
dy.
Repl
ac
e PM
V
bo
dy.
(A
) Coo
lin
g
Doe
s
ind
oo
r
fa
n n
orm
al
ly
o
per
ate
in
c
oo
lin
g s
ea
so
n?
Is
th
ere
cl
og
gi
ng
o
f
ind
oo
r
ai
r f
ilt
e
r
or h
ea
t ex
ch
an
ge
r?
Is
in
doo
r PM
V
no
rm
al?
Re
fri
geran
t s
hort
age or
cloggi
ng or
pipe
def
orm
ed
Ar
e
fo
llo
w
in
g
ite
m
s
con
ce
rne
d
to i
nd
oo
r fa
n
mot
or
no
rmal
?
1.
Con
ne
ct
or
c
onn
ec
tion
2.
Co
nd
en
ser
3.
M
oto
r
4.
Fan
Ye
s
No
No
Is
c
onn
ec
to
r
co
nn
ec
tio
n
or
c
oi
l
no
rmal
?
Is
the
re c
lo
gg
ing
on
w
ho
le
v
a
lv
e?
Is
in
do
or fa
n
sy
st
em
no
rm
al?
F
an
cr
a
ck
F
an
c
om
in
g-o
ff
Che
ck
outdo
or
I/F
P
.C.
boa
rd
.
Fail
ur
e
Repl
ace
No
No
Ye
s
Ye
s
No
No
Ref
rig
erant
sho
rta
ge,
cl
og
gin
g, pipe d
eformed
Cl
ean
ing
Clean
ing
(B) Heating
Check
ind
oor P.
C
. boa
rd.
F
ail
ure
R
epla
ce
Is
o
ut
do
or
fa
n
no
rm
ally
ope
ra
te
d
in
he
at
ing
se
aso
n?
Is
th
ere
clo
g
gi
ng
o
f
ou
td
o
or
h
ea
t
ex
ch
an
ge
r?
Is
o
ut
do
or P
MV
no
rm
al?
Ye
s
No
No
Ye
s
No
Ye
s
Ye
s
Ye
s
No
Ye
s
130
A10-1510.indb 130
A10-1510.indb 130
2016/04/08 17:21:15
2016/04/08 17:21:15
AMP Air Conditioning
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