SiENBE18-621
Troubleshooting for RA Indoor Unit
Troubleshooting
275
Troubleshooting
Check No.01
Refer to P.278
Check No.02
Refer to P.278
Repl
a
ce f
a
n motor.
Repl
a
ce indoor
u
nit PCB (1) .
Repl
a
ce indoor
u
nit PCB (1) .
Repl
a
ce indoor
u
nit PCB (2) .
Repl
a
ce f
a
n motor.
Note : Motor m
a
y
b
re
a
k when
the motor
connector i
s
di
s
connected
while
rem
a
ining
power
su
pply.
Repl
a
ce f
a
n motor
a
nd indoor PCB (2) .
Repl
a
ce indoor
u
nit PCB (2) .
Repl
a
ce f
a
n motor.
Repl
a
ce indoor
u
nit PCB (2) .
T
u
rn off power
su
pply
a
nd
rot
a
te f
a
n
b
y h
a
nd.
T
u
rn power ON
a
nd
oper
a
te f
a
n.
T
u
rn off power
su
pply
a
nd
di
s
connect f
a
n motor
connector, then t
u
rn
power ON.
Check No.01
Check o
u
tp
u
t of f
a
n
motor connector
I
s
motor power
volt
a
ge DC 200V
gener
a
ted?
I
s
motor control
power volt
a
ge DC
15V gener
a
ted?
T
u
rn off power
su
pply
a
nd
di
s
connect f
a
n motor
connector, then t
u
rn
power ON
a
g
a
in.
Doe
s
it rot
a
te?
S
top f
a
n motor.
I
s
rot
a
tion
n
u
m
b
er
comm
a
nd p
u
l
s
e
gener
a
ted?
I
s
rot
a
tion
n
u
m
b
er
comm
a
nd p
u
l
s
e
gener
a
ted?
Check No.01
Check o
u
tp
u
t of f
a
n
motor connector
Check No.01
Check o
u
tp
u
t of f
a
n
motor connector
Check No.01
Check o
u
tp
u
t of f
a
n
motor connector
Check No.02
Check o
u
tp
u
t of indoor
u
nit PCB (1)
I
s
motor control
power volt
a
ge DC
16V generet
a
d?
I
s
rot
a
tion
n
u
m
b
er comm
a
nd
volt
a
ge DC 5V
gener
a
ted?
Doe
s
f
a
n rot
a
te
s
moothly?
(R1214)
YE
S
YE
S
NO
YE
S
YE
S
NO
YE
S
NO
NO
YE
S
NO
YE
S
NO
YE
S
NO
NO
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...