Troubleshooting for RA Indoor Unit
SiENBE18-621
272
Troubleshooting
Troubleshooting
Check No.06
Refer to P.279
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 BPMKS967B2B
Page 1: ...SiENBE18 621 E Series Service Manual Applied Models Super Multi Plus Heat Pump...
Page 12: ...SiENBE18 621 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 19: ...List of Functions SiENBE18 621 8 List of Functions...
Page 33: ...Specifications SiENBE18 621 22 Specifications...
Page 69: ...Refrigerant Flow for Each Operation Mode SiENBE18 621 58 Refrigerant Circuit...
Page 121: ...Indoor Unit SkyAir Models SiENBE18 621 110 Function...
Page 169: ...Instruction SiENBE18 621 158 System Configuration FTXS 20 25 35C Indoor Unit...
Page 371: ...Method of Replacing The Inverter s Power Transistors Modules SiENBE18 621 360 Troubleshooting...
Page 393: ...SiENBE18 621 vi Index...