72
Ca
us
e
1.
Po
we
red
fr
om
th
e o
u
td
oo
r
uni
t
2
.
Ce
ntra
l co
mmu
nica
tio
n wir
ing
con
ne
ction
er
ror
3.
Central communicatio
n
ter
mina
l resista
nce
sett
in
g e
rr
o
r
4.
Ad
dr
ess s
e
ttin
g e
rr
o
r
Che
ck cod
e n
a
me
Cent
ral communi
ca
tio
n
cir
cu
it err
or
(Det
ecte
d on the
in
door
un
it)
Ch
eck co
de
[E
0
4
]
Di
d y
o
u turn o
n
the
indoo
r u
n
it
fir
s
t and
then
th
e out
door
un
it?
Is
th
e in
door
/
outdo
or
wir
in
g c
onnec
ti
on
(U1 /
U2 termi
nal
)
co
rr
ec
t?
Is t
he
c
onne
cto
r c
onn
ec
tion
fr
om t
he i
ndoo
r /
outdo
or
wi
ri
ng ter
min
al
(U1 /
U2 termi
nal
)
co
rr
ec
t?
Is
the
termi
nal
re
s
is
tanc
e s
e
tti
ng o
f the
out
door
un
it c
o
rr
e
ct?
Is
the
addr
es
s
set
ting
co
rr
ec
t?
Is the
c
ond
uct
ion of
the
indo
or
uni
t boa
rd
fus
e
(F
03)
c
o
rr
ec
t?
No
Ye
s
No
Ye
s
No
Ye
s
No
Ye
s
No
Ye
s
No
Ye
s
T
u
rn
o
n
the in
door
uni
t
fi
rs
t an
d then
the o
utdo
or
unit
agai
n
Ye
s
Is
the
re
any
noi
se
?
No
Chec
k th
e i
ndoo
r b
oar
d
Er
ro
r
ĺ
Repl
ac
e
Cor
re
ct t
he wi
ri
ng
Cor
re
ct t
he c
onne
cto
r c
o
n
nec
tion
Cor
re
ct t
he te
rm
inal
r
e
s
is
tanc
e
se
tting
Confi
gur
e
th
e ad
dr
e
s
s
s
e
tti
ng ag
ain
Confi
rm
tha
t the i
ndo
or
/ out
door
wir
in
g is
c
onne
cte
d pr
ope
rl
y,
and then con
nec
t
the wir
ing
co
nnec
tor
on
the i
ndoo
r
unit
boar
d
from CN40
to CN4
4 (EMG
)
Chec
k
and r
e
m
o
ve
the n
o
is
e, e
tc.
F
o
r d
e
tai
ls
, s
ee "
T
ro
uble
sh
ooti
ng fo
r te
st
ru
n
".
Ca
use
1
.
Indo
or
-
o
utd
oor
co
m
m
u
n
ic
at
io
n
wi
ri
ng
(
U
1
, U
2
)
co
nn
ectio
n
e
rror
2
.
C
o
nne
cti
on
e
rr
o
r of conn
ecto
r
fo
r i
ndo
or
co
m
m
u
n
ic
at
io
ns,
P
C
bo
ar
d
e
rr
o
r
3
.
Co
nne
ction
er
ro
r o
f co
nne
ctor
f
o
r ou
tdo
or
comm
un
ica
ti
o
n
s
, I
/F
bo
ar
d e
rro
r
4
.
Indo
or
u
n
it
p
o
w
e
r (
W
he
the
r
pow
e
re
d
o
n
)
Ch
eck co
de
na
me
Numb
er of
in
door un
its decrea
s
ing
Che
ck cod
e
[E
06
]
Is t
her
e an
y
mi
swi
ri
ng /
dis
co
nnec
ti
on
of
t
h
e c
o
mm
u
n
ica
ti
on
l
in
e
betwe
en i
ndoo
r a
nd
outd
oor
?
Is
the
con
nec
tor
c
onnec
ti
on
of
the i
ndoo
r b
oar
d CN4
0
co
rr
ec
t?
Is
the
con
nec
tor
c
onnec
ti
on
o
f the
outdo
or
I/F boa
rd
CN01 cor
re
c
t?
Is
th
e in
door
un
it
power
ed on?
D
id b
lac
ko
u
t oc
cu
r?
Yes
No
No
Ye
s
No
Ye
s
No
Ye
s
Co
rr
ec
t the
wirin
g
Yes
Is
ther
e a
n
y n
o
is
e?
No
Che
ck
the
ind
oor
boa
rd
Er
ro
r
ĺ
Re
pla
c
e
T
u
rn
o
n
the
ind
oor
uni
t
Ch
eck
an
d r
e
mov
e th
e no
is
e, etc
.
No
te:
1. T
h
is
c
ode
appe
ar
s i
f no
si
gnal
is
r
e
c
e
iv
ed f
rom
the
ind
oor
uni
t for
a
giv
en t
ime
.
Au
xi
lia
ry
c
ode:
Numbe
r
of in
door
un
its
for
no
rm
al r
e
c
ept
ion
Yes
No
Co
rr
ec
t the
co
nnec
tor
wi
ri
ng
Cl
ear
the
ch
eck
c
ode
Summary of Contents for MD-VNK802HEXE
Page 120: ...118 11Owner s Manual Excerpt ...
Page 137: ...135 12Installation Manual Excerpt ...
