Mitsubishi Electric City Multi CMB-WP108V-G, Руководство по обслуживанию, Страница: 203 / 301

[
IX
Troubleshooting ]
- 194 - HWE1113B GB
Flow chart
Even if the operation button on the remote controller is pressed, the indoor and the outdoor units do not start running.
YE
S
Blin
k
ing
?
Is
" "
displa
y
ed
on
t
h
e
remote
c
ontroller
?
N
O
N
O
N
O
YE
S
YE
S
W
h
en
all
wires
used
f
or
grouping
are
dis
c
onne
c
ted
,
is
a
t
least
one
o
f
t
h
e
LED2
on
t
h
e
grouped
indoo
r
units
lit
?
YE
S
C
h
e
ck
t
h
e
wiring
Is
t
h
ere
an
indoor
unit
on
w
h
i
ch
LED2
is
turned
o
ff?
I
f
operated
a
f
terwards
,
error
660
2
or
6607
o
cc
urs.
C
h
e
ck
t
h
e
voltage
between
t
h
e
MA
remote
c
ontroller
terminals
(A
and
B).
9
-1
3
VDC
i f
t
h
e
voltage
is
applied
and
0
V
i
f
no
voltage
is
applied.
Is
LED1
on
t
h
e
indoor
unit
c
ontrol
board
lit
?
(Blin
k
s
f
or
2
or
3
se
c
onds
approximatel
y
ever
y
2
0
se
c
onds)
Does
t
h
e
number
o
f
t
h
e
MA
remote
c
ontrollers
t
h
at
are
c
onne
c
ted
to
an
indoor
unit
ex
c
eed
t
h
e
allowable
range
(2
units)
?
Blin
k
ing
?
(T
urns
on
momentaril
y
approximatel
y
ever
y
2
0
se
c
onds)
MA
remote
c
ontroller
→
To
"
1.
P
h
enomenon
"
MA
remote
c
ontroller
→
To
"
1.
P
h
enomenon
"
MA
remote
c
ontroller
→
To
"
1.
P
h
enomenon
"
To
"
2.
P
h
enomenon
"
MA
remote
c
ontroller
→
To
"
1.
P
h
enomenon
"
To
"3
.
P
h
enomenon
"
MA
remote
c
ontroller
→
To
"
1.
P
h
enomenon
"
C
h
e
ck
No.
1
re
f
rigerant
c
ir
c
uit.
To
"
2.
P
h
enomenon
"
MA
remote
c
ontroller
→
To
"
1.
P
h
enomenon
"
C
h
e
ck
t
h
e
re
f
rigerant
c
ir
c
uit.
To
"
2.
P
h
enomenon
"
C
h
e
ck f
or
t
h
e
M-NET
transmission
line.
Repla
c
e
t
h
e
indoor
unit
c
ontrol
board.
Conne
c
t
2
remote
c
ontrollers
or
less.
Restore
t
h
e
original
MA
remote
c
ontroller
wiring
c
onne
c
tions
a
f
ter
repairs.
C
h
e
ck
w
h
et
h
er
t
h
e
s
c
rew
on
t
h
e
wire
is
not
loose.
Is
LED2
on
t
h
e
indoor
unit
c
ontrol
board
blin
k
ing
?
W
h
en
t
h
e
unit
is
operated
wit
h
t
h
e
remote
c
ontroller
,
will
"O
N
"
appear
on
t
h
e
displa
y?
Is
"
Centrali
z
ed
"
displa
y
ed
?
"
H
O"
/
"
PLEA
S
E
W
AIT
" k
eeps
blin
k
ing
on
t
h
e
MA
remote
c
ontroller
.
Is
onl
y
t
h
e
power
sour
c
e
o
f
t
h
e
indoor
unit
turn
turned
on
again
?
DEMAND
b
y
MELAN
S?
External
t
h
ermo
input
setting
?
(
S
W
3
-
3=O
N)
Does
an
error
o
cc
ur
w
h
en
t
h
e
power
is
reset
?
Does
t
h
e
unit
wor
k
properl
y
w
h
en
t
h
e
wire
f
or
t
h
e
MA
remote
c
ontroller
is
dais
y
-
ch
ained
again
?
Is
LED1
on
t
h
e
indoor
unit
c
ontrol
board
lit
?
Does
t
h
e
MA
remote
c
ontroller
wor
k
properl
y
w
h
en
it
is
c
onne
c
ted
to
t
h
e
spe
c
i
f
ied
indoor
unit
?
Does
an
error
o
cc
ur
w
h
en
t
h
e
power
is
reset
?
Running
group
operation
wit
h
t
h
e
MA
remote
c
ontroller
?
Is
t
h
e
unit
grouped
wit
h
t
h
e
e
q
uipment
pa
ck
age
indoor
unit
?
No
f
ault
wit
h
t
h
e
e
q
uipment
pa
ck
age
indoor
unit
?
Does
an
error
o
cc
ur
w
h
en
t
h
e
power
is
reset
?
C
h
e
ck
t
h
at
no
error
o
cc
urs
in
ot
h
er
indoor
units.
C
h
e
ck
t
h
e
indoor
unit
on
w
h
i
ch
LED2
is
lit.
All
t
h
e
indoor
unit
power
f
ailure
?
All
t
h
e
indoor
unit
power
f
ailure
?
Error
displa
y?
Error
displa
y?
T
h
ermo
is
O
FF
?
Is
operation
possible
?
Sh
ort
c
ir
c
uit
o
f
t
h
e
remote
c
ontroller
?
A
f
ter
turning
t
h
e
power
on
, ch
e
ck
w
h
et
h
er
"
H
O"
/
"
PLEA
S
E
WA
IT
"
is
displa
y
ed
on
t
h
e
remote
c
ontroller
.
A
f
ter
more
t
h
an
2
0
se
c
onds
sin
c
e
turning
t
h
e
power
on
,
is
LED2
ch
e
ck
o
f
t
h
e
indoor
c
ontrol
board
still
displa
y
ed
?
Is
t
h
e
operation
b
y
MELAN
S
f
orbidden
or
t
h
e
input
f
rom
external
c
ontrol
e
q
uipment
allowed
(
S
WC
=O
N)
?
Is
t
h
e
c
ompulsor
y
t
h
ermo
O
FF
(
S
WA
)
swit
ch
set
to
"
2
"
or
"3"?
Alt
h
oug
h
No.1
re
f
rigerant
c
ir
c
uit
is
normal
,
No.2
or
No.
3
re
f
rigerant
c
ir
c
uit
remain
stopped.
Running
group
operation
wit
h
t
h
e
MA
remote
c
ontroller
?
Does
t
h
e
indoor
unit
ma
k
e
an
instantaneous
stop
?
Power
suppl
y
voltage
AC1
98~
2
64
V
?
N
O
YE
S
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
W
h
en
no
error
o
cc
urs
N
O
N
O
N
O
Keep
displa
y
ing
f
or
5
or
more
minutes.
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
C
h
e
ck
t
h
e
power
suppl
y
.
C
h
e
ck
t
h
e
wire
f
or
t
h
e
remote
c
ontroller
.
N
O
Repla
c
e
t
h
e
indoor
unit
c
ontrol
board.
N
O
N
O
N
O
N
O
N
O
Repla
c
e
t
h
e
MA
remote
c
ontroller
.
N
O
Repla
c
e
t
h
e
remote
c
ontroller
or
t
h
e
indoor
c
ontrol
board.
YE
S
Repla
c
e
t
h
e
indoor
unit
c
ontrol
board
w
h
ere
an
error
o
cc
urs.
Keep
t
h
e
operation.
N
O
N
O
N
O
N
O
Keep
t
h
e
operation.
YE
S
YE
S
YE
S
YE
S
Power
on
YE
S
Re
f
er
to
t
h
e
sel
f
-diagnosis
list
f
or
t
h
e
displa
y
ed
error
c
ode.
YE
S
Normal
T
urns
o
ff
wit
h
in
approximatel
y 5
minutes.
A
f
ter
t
h
e
main
power
on
,
start
t
h
e
MA
remote
c
ontroller
.
"
H
O"
displa
y
will
appear
.
YE
S
Normal
"
Centrali
z
ed
"
is
displa
y
ed.
YE
S
Re
f
er
to
t
h
e
error
c
ode
list.
YE
S
YE
S
YE
S
Normal
YE
S
Normal
(Is
t
h
e
t
h
ermo
O
FF
signal
input
?
)
YE
S
S
et
t
h
e
S
WA
to
"
1
"
.
YE
S
Re
f
er
to
t
h
e
sel
f
-diagnosis
list
f
or
t
h
e
displa
y
ed
error
c
ode.
YE
S
YE
S
YE
S
YE
S
C
h
e
ck
t
h
e
e
q
uipment
pa
ck
age
indoor
unit.
YE
S
Repla
c
e
t
h
e
remote
c
ontroller
or
t
h
e
indoor
c
ontrol
board.
Repla
c
e
t
h
e
indoor
unit
c
ontrol
board.
YE
S
YE
S
YE
S
Repla
c
e
t
h
e
remote
c
ontroller
or
t
h
e
indoor
c
ontrol
board.
Normal
(
O
perate
t
h
e
unit
wit
h
external
c
ontrol
e
q
uipment)
YE
S
YE
S
Repla
c
e
t
h
e
indoor
unit
c
ontrol
board.
C
h
e
ck
t
h
e
power
suppl
y
.
YE
S
YE
S
YE
S
YE
S
C
h
e
ck
t
h
e
voltage
between
t
h
e
MA
remote
c
ontroller
terminal
blo
ck
s
(TB1
5
)
(A
and
B).
9
-1
3
VDC
i
f
t
h
e
voltage
is
applied
and
0
V
i
f
no
voltage
is
applied.
N
O
Dis
c
onne
c
ted
wire
f
or
t
h
e
remote
c
ontroller
?
Dis
c
onne
c
ted
wire
to
t
h
e
terminal
blo
ck?
Dis
c
onne
c
ted
rela
y c
onne
c
tor
?
N
O
Are
t
h
e
lengt
h
or
t
h
e
diameter
o
f
t
h
e
wire
f
or
MA
remote
c
ontroller
out
o
f
spe
c
i
f
i
c
ation
?
N
O
YE
S
YE
S
Use
t
h
e
wire
t
h
at
meets
t
h
e
spe
c
i
f
i
c
ation.
Repla
c
e
t
h
e
wire
f
or
t
h
e
MA
remote
c
ontroller
.
YE
S
C
h
e
ck f
or
t
h
e
wire
f
or
t
h
e
remote
c
ontroller
.
Keep
t
h
e
operation.
YE
S
Repla
c
e
t
h
e
indoor
unit
c
ontrol
board.
YE
S
YE
S
YE
S
Power
on