SiUS091133
Troubleshooting
Service Diagnosis
94
4. Troubleshooting
4.1
Error Codes and Description
: Displayed only when system-down occurs.
Error Codes
Description
Reference
Page
System
00
Normal
—
U0
Refrigerant shortage
U2
Low-voltage detection or over-voltage detection
U4
Signal transmission error (between indoor unit and outdoor unit)
UA
Unspecified voltage (between indoor unit and outdoor unit)
Indoor
Unit
A1
Indoor unit PCB abnormality
A5
Freeze-up protection control or heating peak-cut control
A6
Fan motor or related
abnormality
DC motor (FTXS series)
AC motor (FDXS series)
C4
Indoor heat exchanger thermistor or related abnormality
C9
Room temperature thermistor or related abnormality
Outdoor
Unit
E1
Outdoor unit PCB abnormality
E5
OL activation (compressor overload)
E6
Compressor lock
E7
DC fan lock
E8
Input overcurrent detection
EA
FourWay valve abnormality
F3
Discharge pipe temperature control
F6
High pressure control in cooling
H0
Compressor system sensor abnormality
H6
Position sensor abnormality
H8
DC voltage / current sensor abnormality (09/12 class only)
CT or related abnormality (24/30/36 class only)
H9
Outdoor temperature thermistor or related abnormality
J3
Discharge pipe thermistor or related abnormality
J6
Outdoor heat exchanger thermistor or related abnormality
L3
Electrical box temperature rise
L4
Radiation fin temperature rise
L5
Output overcurrent detection
P4
Radiation fin thermistor or related abnormality
U7
Signal transmission error on outdoor unit PCB
(24/30/36 class only)
Содержание FTXS30LVJU
Страница 8: ...SiUS091133 Table of Contents vii...
Страница 11: ...SiUS091133 1 List of Functions Part 1 List of Functions 1 Functions 2 1 1 FTXS Series 2 1 2 FDXS Series 4...
Страница 15: ...SiUS091133 5 Specifications Part 2 Specifications 1 Specifications 6 1 1 FTXS Series 6 1 2 FDXS Series 11...
Страница 164: ...SiUS091133 Check Service Diagnosis 154 15 18 class 24 30 36 class Power module R16697 R16073 Power module...
Страница 259: ...Indoor Unit FTXS30 36LVJU SiUS091133 249 Removal Procedure 6 Disconnect the connector Step Procedure Points R9558...
Страница 413: ...Wiring Diagrams SiUS091133 403 Appendix...