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SiEN18-622
Troubleshooting for Outdoor Unit
Troubleshooting
393
Troubleshooting
(V
3
1
8
7)
Caution
YE
S
YE
S
NO
YE
S
YE
S
NO
NO
YE
S
NO
NO
NO
NO
YE
S
NO
NO
YE
S
YE
S
YE
S
NO
YE
S
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
the
indoor or
o
u
tdoor
u
nit PC
b
o
a
rd
b
een repl
a
ced, or
h
as
the indoor - o
u
tdoor
or o
u
tdoor - o
u
tdoor
u
nit tr
a
n
s
mi
ss
ion
wiring
b
een
modified?
All
indoor
u
nit remote
control
s
of the
sa
me
refriger
a
nt
s
y
s
tem
di
s
pl
a
y"U4."
Re
s
et the power
su
pply.
O
u
tdoor
u
nit PC
b
o
a
rd
microcomp
u
ter monitor
(HAP)
b
link
s
.
Oper
a
tion re
a
dy
l
a
mp (H2P) i
s
b
linking.
L
a
mp doe
s
not go off for 12 min
u
te
s
or more.
I
s
indoor - o
u
tdoor
a
nd o
u
tdoor - o
u
tdoor
u
nit tr
a
n
s
mi
ss
ion
wiring norm
a
l?
I
s
indoor-
o
u
tdoor
a
nd o
u
tdoor
-o
u
tdoor
u
nit tr
a
n
s
mi
ss
ion
wiring norm
a
l?
The
volt
a
ge
b
etween
termin
a
l
s
L1
a
nd N of the
o
u
tdoor
u
nit PC
b
o
a
rd
i
s
220
~
240 V.
The f
us
e on the
o
u
tdoor
u
nit'
s
PC
b
o
a
rd
i
s bu
rnt.
The
s
econd
a
ry volt
a
ge of
the tr
a
n
s
former i
s
ab
o
u
t 22
~
24 V.
P
us
h
a
nd hold the RE
S
ET
bu
tton on the m
as
ter o
u
tdoor
u
nit PC Bo
a
rd for 5
s
econd
s
.
*
The
u
nit will not oper
a
te for
u
p to 12 mint
u
te
s
Repl
a
ce the indoor
u
nit
PC
b
o
a
rd.
Fix the indoor/o
u
tdoor
u
nit
tr
a
n
s
mi
ss
ion wiring.
Su
pply 220
~
240 V.
Repl
a
ce the f
us
e.
Repl
a
ce the tr
a
n
s
former.
Repl
a
ce o
u
tdoor
u
nit PC
b
o
a
rd (A1P).
P
us
h
a
nd hold the RE
S
ET
bu
tton on the o
u
tdoor
u
nit
PC
b
o
a
rd for 5
s
econd
s
.
Fix the indoor/o
u
tdoor
u
nit
tr
a
n
s
mi
ss
ion wiring.
Repl
a
ce the o
u
tdoor
u
nit
PC
b
o
a
rd (A1P).
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 ...