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SiEN18-622
Troubleshooting for Outdoor Unit
Troubleshooting
401
Troubleshooting
Caution
YE
S
YE
S
NO
YE
S
YE
S
YE
S
YE
S
YE
S
NO
NO
NO
NO
NO
NO
(V2
8
29)
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.
H
as
a
n indoor
u
nit
once connected
b
een
removed or it
s a
ddre
ss
ch
a
nged?
I
s
the power
su
pply
t
u
rned on for indoor
u
nit
s
di
s
pl
a
ying m
a
lf
u
nction?
I
s
tr
a
n
s
mi
ss
ion wiring
di
s
connected or wired
incorrectly?
I
s
tr
a
n
s
mi
ss
ion with
a
ll indoor
u
nit
s
m
a
lf
u
nctioning?
I
s
the tr
a
n
s
mi
ss
ion
wiring with the m
as
ter
controller di
s
connected
or wired incorrectly?
I
s
the
m
as
ter controller'
s
connector for
s
etting
m
as
ter controller
di
s
connected?
I
s
the gro
u
p
No. of m
a
lf
u
nctioning
indoor
u
nit
s s
et?
Re
s
et power
su
pply
s
im
u
lt
a
neo
us
ly for
a
ll
option
a
l controller
s
for
centr
a
lized control.
T
u
rn indoor
u
nit'
s
power
su
pply.
Fix the wiring correctly.
S
et the gro
u
p No. correctly.
Repl
a
ce indoor
u
nit PC
b
o
a
rd.
Fix the wiring correctly.
Connect the connector
correctly.
Repl
a
ce the centr
a
l PC
b
o
a
rd.
Summary of Contents for FTKS50BVMB
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Page 452: ...SiEN18 622 vi Index ...