Troubleshooting
SiUS04-904
Service Diagnosis
127
Troubleshooting
Check No.12
Refer to P.156
(R10494)
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector, or parts damage may occ
u
r.
YES
C
u
rrent
(g
u
ideline)
2 sec
Time
N
O
N
O
YES
YES
N
O
YES
N
O
YES
N
O
T
u
rn off the po
w
er and t
u
rn it on
again.
Check No. 12
Check the capacitor
v
oltage.
Check
w
ith the in
v
erter checker (
*
).
Meas
u
re the rectifier inp
u
t
v
oltage.
Get the system started.
T
u
rn off the po
w
er. Disconnect the
harnesses U,
V
and
W
.
T
u
rn off the po
w
er and reconnect
the a
b
o
v
e harnesses. Then t
u
rn on
the po
w
er again and get the system
restarted.
Compressor
r
u
nning?
DC3
8
0±30
V
?
Any LED off?
*
R
u
nning
c
u
rrent as sho
w
n at right
w
ith relay ca
b
le 1 or 2?
V
oltage
w
ithin
the allo
w
a
b
le range
(S
u
pply
v
oltage±15%)?
Replace the o
u
tdoor
u
nit
PCB.
Replace the o
u
tdoor
u
nit
PCB.
Replace the o
u
tdoor
u
nit
PCB.
Check the s
u
pply
v
oltage.
Replace the compressor.
Capacitor charged
w
hen
the indoor
u
nit or o
u
tdoor
u
nit main relay t
u
rns on
Rising
w
ith increasing
fre
qu
ency
Correct the po
w
er s
u
pply or
replace the SPM.
(Replace the o
u
tdoor
u
nit
PCB.)
*
In
v
erter checker
Part
N
o.: 1225477
Summary of Contents for FTXS09HVJU
Page 1: ...SiUS04 904 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type H Series...
Page 9: ...Safety Considerations SiUS04 904 viii Safety Considerations...
Page 10: ...SiUS04 904 List of Functions 1 Part 1 List of Functions 1 Functions 2...
Page 72: ...Control Specification 15 18 24 Class SiUS04 904 62 Function and Control...
Page 77: ...FTXS09 12HVJU SiUS04 904 66 Operation Manual...
Page 78: ...SiUS04 904 FTXS09 12HVJU Operation Manual 67...
Page 83: ...FTXS09 12HVJU SiUS04 904 72 Operation Manual is no longer displayed on the LCD...
Page 84: ...SiUS04 904 FTXS09 12HVJU Operation Manual 73 is no longer displayed on the LCD...
Page 85: ...FTXS09 12HVJU SiUS04 904 74 Operation Manual...
Page 86: ...SiUS04 904 FTXS09 12HVJU Operation Manual 75...
Page 87: ...FTXS09 12HVJU SiUS04 904 76 Operation Manual 3P232717 1C...
Page 90: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 79 is no longer displayed on the LCD...
Page 91: ...FTXS15 18 24HVJU SiUS04 904 80 Operation Manual...
Page 94: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 83 is no longer displayed on the LCD...
Page 95: ...FTXS15 18 24HVJU SiUS04 904 84 Operation Manual Do not hit or forcefully push the operation...
Page 96: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 85 is no longer displayed on the LCD...
Page 97: ...FTXS15 18 24HVJU SiUS04 904 86 Operation Manual is no longer displayed on the LCD...
Page 98: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 87 is no longer displayed on the LCD...
Page 99: ...FTXS15 18 24HVJU SiUS04 904 88 Operation Manual...
Page 100: ...SiUS04 904 FTXS15 18 24HVJU Operation Manual 89...
Page 101: ...FTXS15 18 24HVJU SiUS04 904 90 Operation Manual 3P232717 2C...