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Troubleshooting
SiENBE12-713
272
Service Diagnosis
Troubleshooting
Check No.04
Refer to P.277
Check No.06
Refer to P.279
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
(R5150)
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
Check No. 06
Check the thermi
s
tor
s
.
YE
S
NO
Oil oozing
a
t intern
a
l piping?
NO
YE
S
Check No. 04
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
Summary of Contents for FTKS20D3VMW
Page 11: ...Introduction SiENBE12 713 x...
Page 47: ...Specifications SiENBE12 713 36 Specifications...
Page 113: ...Control Specification SiENBE12 713 102 Function and Control...
Page 235: ...Instruction SiENBE12 713 224 System Configuration...
Page 297: ...Check SiENBE12 713 286 Service Diagnosis...
Page 316: ...SiENBE12 713 Outdoor Unit Removal Procedure 305 Step Procedure Points...