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SiUS04-904
Troubleshooting
116
Service Diagnosis
Troubleshooting
Check No.05
Refer to P.145
Check No.06
Refer to P.146
Check No.11
Refer to P.149
Malf
u
nctioning
F
u
nctioning
N
O
F
u
nctioning
Malf
u
nctioning
F
u
nctioning
YES
Malf
u
nctioning
Correct.
Reconnect.
YES
YES
YES
N
O
N
O
Replace the fo
u
r-
w
ay
v
al
v
e
coil.
N
O
Replace the o
u
tdoor
u
nit
PCB.
Refrigerant shortage
W
ater mixed
Stop
v
al
v
e defecti
v
e
Replace a defecti
v
e
thermistor.
Refer to the refrigerant line
check proced
u
re.
Replace the fo
u
r-
w
ay
v
al
v
e
(defecti
v
e or d
u
st-clogged).
Reconnect in position.
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.
(R7345)
Fo
u
r-
w
ay
v
al
v
e
coil disconnected (loose)?
Harness o
u
t of
connector?
Any thermistor
disconnected?
Check No. 06
Check the thermistors.
Check No. 11
Check the refrigerant line.
Check No.
05
Check the fo
u
r-
w
ay
v
al
v
e
s
w
itching o
u
tp
u
t.
Disconnect the
`harness from the
connector.
Resistance
b
et
w
een
harnesses a
b
o
u
t
3
κΩ
±0.5
κΩ
?
Check the contin
u
ity of the fo
u
r-
w
ay
v
al
v
e coil and harness.
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...