[
IX
Troubleshooting ]
- 197 -
HWE1113B
GB
In case of ME remote controller
3. Phenomena
"HO" display on the remote controller does not disappear, and no operation is performed even if the button is pressed.
(1) Cause
Without using MELANS
1) Outdoor unit address is set to "00"
2) A wrong address is set.
The address of the indoor unit that is connected to the remote controller is incorrect. (It should equal the ME remote controller
address plus 100.)
A wrong address is set to the ME remote controller. (100 must be added to the address of the indoor unit.)
3) Faulty wiring of the terminal block for transmission line (TB5) of the indoor unit in the same group with the remote controller.
4) The centralized control switch (SW2-1) on the outdoor unit is set to ON.
5) Disconnection or faulty wiring of indoor unit transmission line.
6) Disconnection between the terminal block for M-NET line connection (TB5) of the indoor unit and the male connector (CN2M)
7) The male power supply connectors on 2 or more outdoor units are connected to the female power supply switch connector
(CN40) for the transmission line for centralized control.
8) Outdoor unit control board failure
9) Indoor unit control board failure
10) Remote controller failure
Interlocking control with MELANS
11) No group registration is made using MELANS. (The indoor unit and the ME remote controller are not grouped.)
12) Disconnected transmission line for centralized control (TB7) of the outdoor unit
13) The male power supply connector is connected to CN40 on more than one outdoor unit, or the connector is connected to
CN40 on the outdoor unit in the system to which a power supply unit for transmission line is connected.
Using MELANS
14) When MELANS is used, "HO" display on the remote controller will disappear when the indoor unit and the local remote con-
troller (ME remote controller) are grouped.
If "HO" does not disappear after the registration, check the causes (2) 1) - 3).
(2) Check method and remedy
YE
S
YE
S
YE
S
YE
S
YE
S
YE
S
YE
S
N
O
N
O
*
1
*
1.
W
h
en
t
h
e
indoor
unit
address
is
set
to
1
-
50,
t
h
e
address
will
be
f
or
c
ibl
y
set
to
1
00
.
N
O
N
O
N
O
N
O
N
O
Wit
h
out
using
MELAN
S
Are
all
t
h
e
units
in
t
h
e
s
y
stem
experien
c
ing
t
h
e
same
problem
?
C
h
e
ck
t
h
e
address
o
f
t
h
e
outdoor
unit.
5
1
-
1
00?
C
h
e
ck
t
h
e
c
entrali
z
ed
c
entrali
z
ed
swit
ch
(
S
W2-1)
on
t
h
e
outdoor
unit.
O
N
?
Indoor
unit
c
ontrol
board
f
ailure
A
wrong
address
is
set
to
t
h
e
outdoor
unit.
Wrong
swit
ch
setting
C
h
ange
it
f
rom
O
N
to
O
FF.
A
wrong
address
is
set
to
t
h
e
ME
remote
c
ontroller.
A
wrong
address
is
set
to
t
h
e
indoor
unit.
Wrong
wiring
o
f
t
h
e
M-NET
transmission
line
o
f
t
h
e
indoor
unit
Dis
c
onne
c
ted
c
onne
c
tor
(CN2M)
Corre
c
t
t
h
e
error.
Dis
c
onne
c
ted
?
1
7
-
30
V
?
ME
remote
c
ontroller
-
1
00?
C
h
e
ck
t
h
e
address
o
f
t
h
e
indoor
unit
to
be
c
oupled.
Indoor
unit
+
1
00?
C
h
e
ck
t
h
e
address
o
f
t
h
e
ME
remote
c
ontroller
on
w
h
i
ch "
H
O"
is
displa
y
ed.
C
h
e
ck c
onne
c
tion
between
indoor
M-NET
transmission
terminal
blo
ck
(TB
5
)
and
t
h
e
male
c
onne
c
tor
(CN2M)
Measure
voltages
o
f
t
h
e
terminal
blo
ck f
or
M-NET
transmission
line
on
t
h
e
indoor
unit.
Indoor
unit
board
or
remote
c
ontroller
f
ailure
Summary of Contents for City Multi CMB-WP108V-G
Page 1: ...AIR CONDITIONER 2014 Service Handbook PURY WP200 WP250YJM A CMB WP108V G Model 3rd edition ...
Page 11: ... 2 HWE1113B GB ...
Page 27: ... I Read Before Servicing 18 HWE1113B GB ...
Page 29: ... 20 HWE1113B GB ...
Page 57: ... 48 HWE1113B GB ...
Page 70: ... III Outdoor Unit Components 61 HWE1113B GB 2 Power supply circuit board ...
Page 71: ... III Outdoor Unit Components 62 HWE1113B GB ...
Page 73: ... 64 HWE1113B GB ...
Page 81: ... IV Remote Controller 72 HWE1113B GB ...
Page 83: ... 74 HWE1113B GB ...
Page 89: ... 80 HWE1113B GB ...
Page 97: ... 88 HWE1113B GB ...
Page 127: ... 118 HWE1113B GB ...
Page 135: ... VIII Test Run Mode 126 HWE1113B GB ...
Page 137: ... 128 HWE1113B GB ...
Page 253: ... 244 HWE1113B GB ...
