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Troubleshooting
SiENBE12-713
238
Service Diagnosis
Troubleshooting
Check No.06
Refer to P.279
Note:
If the outside temperature is below –10°C in the cooling mode, the system may get interrupted
with error
A5
displayed. The system will be reset itself, but this stop will be put in the error history
memory.
NO
NO
NO
Check No. 06
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
(R4695)
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?
NO
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).
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.
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...