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Troubleshooting
SiENBE04-512A
128
Service Diagnosis
Troubleshooting
Check No.4
Refer to P.130
Check No.6
Refer to P.132
Reconnect in po
s
ition.
Open the
s
top v
a
lve.
Rep
a
ir the pipe fl
a
re or
repl
a
ce the
squa
re
u
nion.
Check the power tr
a
n
s
i
s
tor
h
a
rne
ss
for loo
s
ene
ss
.
Correct it
as
re
qu
ired. Al
s
o
repl
a
ce cr
a
cked pipe if
a
ny.
Check the pipe
s
for
improper cont
a
ct. Correct
as
re
qu
ired. Al
s
o repl
a
ce
cr
a
cked pipe if
a
ny.
Repl
a
ce the electronic
exp
a
n
s
ion v
a
lve.
Repl
a
ce the room
temper
a
t
u
re or o
u
tdoor
a
ir
thermi
s
tor, or the indoor
u
nit or o
u
tdoor
u
nit he
a
t
exch
a
nger thermi
s
tor.
(1) Repl
a
ce the PCB.
(2) Repl
a
ce the compre
ss
or.
Proced
u
re complete
(R
33
1
8
)
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.
Any thermi
s
tor
di
s
connected?
YE
S
M
a
lf
u
nctioning
NO
S
top v
a
lve clo
s
ed?
NO
YE
S
YE
S
NO
G
as
s
hort
a
ge error
a
g
a
in?
F
u
nctioning
C
heck No.
6
Check the thermi
s
tor
s
.
YE
S
NO
Oil oozing
a
t intern
a
l piping?
NO
YE
S
C
heck No.
4
Electronic exp
a
n
s
ion v
a
lve
f
u
nctioning?
YE
S
NO
Oil oozing
a
t rel
a
y pipe
connection
s
?
Check for g
as
le
a
k
a
ge.
Ch
a
nge for
a
s
pecified
a
mo
u
nt of
fre
s
h refriger
a
nt.
NO
YE
S
Compre
ss
or vi
b
r
a
ting
too m
u
ch?
*
Di
s
ch
a
rge pipe thermi
s
tor
*
Indoor / o
u
tdoor
u
nit he
a
t exch
a
nger thermi
s
tor
*
Room temper
a
t
u
re thermi
s
tor
*
O
u
tdoor
a
ir thermi
s
tor
SiENBE04-512A.book Page 128 Friday, October 5, 2007 1:49 PM
Summary of Contents for FTKS20CVMB(9)
Page 1: ...SiENBE04 512A Service Manual Inverter Pair Wall Mounted Type C Series D Series...
Page 17: ...List of Functions SiENBE04 512A 8 List of Functions...
Page 37: ...Specifications SiENBE04 512A 28 Specifications...
Page 73: ...Control Specification SiENBE04 512A 64 Function and Control...
Page 103: ...Instruction SiENBE04 512A 94 System Configuration...
Page 147: ...Check SiENBE04 512A 138 Service Diagnosis...
Page 225: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 512A 216 Removal Procedure...
Page 229: ...Others SiENBE04 512A 220 Others...
Page 241: ...Wiring Diagrams SiENBE04 512A 232 Appendix...