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SiENBE04-925_A
Troubleshooting
Service Diagnosis
75
4. Troubleshooting
4.1
Error Codes and Description
H
: Displayed only when system-down occurs.
Error Codes
Description
Reference
Page
System
00
Normal
—
U0
H
Refrigerant shortage
112
U2
Low-voltage detection or over-voltage detection
115
U4
Signal transmission error (between indoor unit and outdoor unit)
82
UA
Unspecified voltage (between indoor unit and outdoor unit)
83
Indoor
Unit
A1
Indoor unit PCB abnormality
76
A5
Freeze-up protection control or heating peak-cut control
77
A6
Fan motor (DC motor) or related abnormality
79
C4
Indoor heat exchanger thermistor or related abnormality
81
C9
Room temperature thermistor or related abnormality
81
Outdoor
Unit
E1
Outdoor unit PCB abnormality
84
E5
H
OL activation (compressor overload)
86
E6
H
Compressor lock
87
E7
DC fan lock
88
E8
Input overcurrent detection
89
EA
Four way valve abnormality
90
F3
Discharge pipe temperature control
92
F6
High pressure control in cooling
94
H0
Compressor system sensor abnormality
96
H6
Position sensor abnormality
98
H8
DC voltage / current sensor abnormality (20/25 class)
101
CT or related abnormality (35 class)
102
H9
Outdoor temperature thermistor or related abnormality
104
J3
Discharge pipe thermistor or related abnormality
104
J6
Outdoor heat exchanger thermistor or related abnormality
104
L3
Electrical box temperature rise
106
L4
Radiation fin temperature rise
108
L5
Output overcurrent detection
110
P4
Radiation fin thermistor or related abnormality
104
U7
Signal transmission error on outdoor unit PCB (35 class only)
117
SIENBE04-925_A_FRONT.pdf 90
24/02/2011 13:53:56
Содержание Inverter FTXL20G2V1B
Страница 8: ...SiENBE04 925_A vi Table of Contents...
Страница 14: ...Introduction SiENBE04 925_A xii...
Страница 15: ...SiENBE04 925_A List of Functions 1 Part 1 List of Functions 1 Functions 2...
Страница 17: ...SiENBE04 925_A Specifications 3 Part 2 Specifications 1 Specifications 4...
Страница 20: ...Specifications SiENBE04 925_A 6 Specifications...
Страница 186: ...SiENBE04 925_A Outdoor Unit RXL20G2V1B Removal Procedure 171 4 Feature of the thermistors Step Procedure Points R9356...