SiUS04-904
Troubleshooting
108
Service Diagnosis
4.7
OL Activation (Compressor Overload)
Remote
Controller
Display
E5
Method of
Malfunction
Detection
A compressor overload is detected through compressor OL.
Malfunction
Decision
Conditions
If the compressor OL is activated twice, the system is shut down.
The error counter is reset if this or any other error does not occur during the following 60-minute
compressor running time (total time).
The operating temperature condition is not specified.
Supposed
Causes
Refrigerant shortage
Four-way valve malfunctioning
Outdoor unit PCB defective
Water mixed in the local piping
Electronic expansion valve defective
Stop valve defective
Troubleshooting
Check No.04
Refer to P.144
Check No.05
Refer to P.145
Check No.06
Refer to P.146
Check No.11
Refer to P.149
(R7137)
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
Malf
u
nctioning
*
Discharge pipe thermistor
N
O
F
u
nctioning
F
u
nctioning
Malf
u
nctioning
*
Refrigerant shortage
*
W
ater mixed
*
Stop
v
al
v
e defecti
v
e
Malf
u
nctioning
F
u
nctioning
Malf
u
nctioning
F
u
nctioning
Insert the thermistor in
position.
Replace the discharge pipe
thermistor.
Replace the
v
al
v
e itself or
the coil.
Refer to the refrigerant line
check proced
u
re.
Replace the o
u
tdoor
u
nit
PCB.
Replace the fo
u
r-
w
ay
v
al
v
e
coil or the
v
al
v
e itself.
Replace the o
u
tdoor
u
nit
PCB.
Discharge pipe
thermistor disconnected?
Check No. 06
Check the thermistors.
Check No. 05
Check the fo
u
r-
w
ay
v
al
v
e.
Check No. 11
Check the refrigerant line.
Check No. 04
Check the electronic
expansion
v
al
v
e.
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...
