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Troubleshooting for RA Indoor Unit
SiEN18-622
324
Troubleshooting
Troubleshooting
Check No.06
Refer to P.331
NO
NO
NO
NO
Check No. 06
Indoor
u
nit he
a
t exch
a
nger
thermi
s
tor check
Cle
a
n the
a
ir filter.
(R4695)
Caution
Check the
a
ir p
assa
ge.
YE
S
YE
S
YE
S
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.
I
s
there
a
ny
s
hort-circ
u
it?
Check the int
a
ke
a
ir filter.
I
s
it very dirty?
Check the d
us
t
a
cc
u
m
u
l
a
tion on
the indoor
u
nit he
a
t exch
a
nger.
I
s
it very dirty?
Doe
s
it conform to the
thermi
s
tor ch
a
r
a
cteri
s
tic
ch
a
rt?
Provide
su
fficient
a
ir p
assa
ge.
Cle
a
n the he
a
t exch
a
nger.
Repl
a
ce the indoor
u
nit PCB.
Repl
a
ce the thermi
s
tor
(repl
a
ce the indoor
u
nit PCB).
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 ...