Troubleshooting
SiENBE04-507A
114
Service Diagnosis
Troubleshooting
Check No.6
Refer to P.146
Check No. 6
Indoor
u
nit he
a
t exch
a
nger
thermi
s
tor check
Check the int
a
ke
a
ir filter.
Check the
a
ir p
assa
ge.
YE
S
YE
S
(R1401)
Check the d
us
t
a
cc
u
m
u
l
a
tion on
the indoor
u
nit he
a
t exch
a
nger.
YE
S
YE
S
I
s
there
a
ny
s
hort-circ
u
it?
I
s
it very dirty?
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
a
ir filter.
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).
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.
Caution
NO
NO
NO
NO
Summary of Contents for FTKS20D2VMWL
Page 10: ...SiENBE04 507A List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 85: ...Control Specification SiENBE04 507A 76 Function and Control...
Page 159: ...Check SiENBE04 507A 150 Service Diagnosis...
Page 215: ...Others SiENBE04 507A 206 Others...
Page 221: ...Wiring Diagrams SiENBE04 507A 212 Appendix...
Page 225: ...SiENBE04 507A iv Index...
