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SiUS04-904
Troubleshooting
98
Service Diagnosis
4. Troubleshooting
4.1
Error Codes and Description
: Displayed only when system-down occurs.
Code
Indication
Description
Reference Page
09/12
Class
15/18/24
Class
System
00
Normal
—
—
U0
Refrigerant shortage
138
140
U2
Over-voltage detection
142
—
Low-voltage detection
—
143
U4
Signal transmission error (between indoor and outdoor unit)
106
106
Indoor
Unit
A1
Indoor unit PCB abnormality
99
99
A5
Freeze-up protection control or high pressure
control
100
100
A6
Fan motor or related abnormality
AC Motor
102
—
DC Motor
—
103
C4
Heat exchanger temperature thermistor
abnormality
105
105
C9
Room temperature thermistor abnormality
105
105
Outdoor
Unit
E5
OL activation (compressor overload)
108
108
E6
Compressor lock
109
110
E7
DC fan lock
111
111
E8
Input overcurrent detection
112
113
EA
Four-way valve abnormality
115
117
F3
Discharge pipe temperature control
119
120
F6
High pressure control in cooling
121
121
H6
Position sensor abnormality
123
124
H8
DC voltage/current sensor abnormality
125
—
CT or related abnormality
—
126
H9
Outdoor air thermistor or related abnormality
128
128
J3
Discharge pipe temperature thermistor or related abnormality
128
128
J6
Heat exchanger temperature thermistor or related
abnormality
128
128
L3
Electrical box temperature rise
130
130
L4
Radiation fin temperature rise
132
132
L5
Output overcurrent detection
134
136
P4
Heat radiation fin thermistor or related abnormality
128
128
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...