Troubleshooting
SiE12-411
178
Service Diagnosis
5.9
Unspecified Voltage (between Indoor and Outdoor Units)
Remote
Controller
Display
UA
Method of
Malfunction
Detection
The supply power is detected for its requirements (different from separate type and multi type)
by the indoor / outdoor transmission signal.
Malfunction
Decision
Conditions
The separate type and multi type are interconnected.
Supposed
Causes
"
Wrong models interconnected
"
Wrong indoor unit PCB mounted
"
Indoor unit PCB defective
"
Wrong outdoor unit PCB mounted or defective
Troubleshooting
Check the indoor
a
nd o
u
tdoor
u
nit
model n
u
m
b
er
s
.
M
a
tch the comp
a
ti
b
le
model
s
.
Ch
a
nge for the
s
pecified
PC
b
o
a
rd (1) or (2).
Repl
a
ce the indoor
u
nit PC
b
o
a
rd (1) (or the o
u
tdoor
(Q0
3
47)
Caution
Be
su
re to t
u
rn off power
s
witch
b
efore connect or di
s
connect connector,
or p
a
rt
s
d
a
m
a
ge m
a
y
b
e occ
u
rred.
Indoor
u
nit
a
nd o
u
tdoor
u
nit
m
a
tched?
NO
YE
S
YE
S
M
a
tched comp
a
ti
b
ly?
NO
Check the code n
u
m
b
er
s
(2P012
3
4, for ex
a
mple) of the
indoor
a
nd o
u
tdoor
u
nit PC
b
o
a
rd
s
with the P
a
rt
s
Li
s
t.
Summary of Contents for Super Multi NX C-Series
Page 6: ...SiE12 411 Table of Contents v Index i Drawings Flow Charts v...
Page 7: ...SiE12 411 vi Table of Contents...
Page 67: ...Specifications SiE12 411 56 Specifications...
Page 171: ...Instruction SiE12 411 160 System Configuration...
Page 225: ...Check SiE12 411 214 Service Diagnosis...
Page 295: ...SiE12 411 iv Index...
