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SiUS041501E
Troubleshooting
Service Diagnosis
60
4. Troubleshooting
4.1
Error Codes and Description
: Displayed only when system-down occurs.
Error Codes
Description
Reference
Page
System
00
Normal
—
U2
Low-voltage detection or over-voltage detection
66
U4
Signal transmission error (between indoor unit and outdoor unit)
68
UA
Unspecified voltage (between indoor unit and outdoor unit)
70
Indoor
Unit
A1
Indoor unit PCB abnormality
61
A5
Freeze-up protection control / heating peak-cut control
62
A6
Fan motor (DC motor) or related abnormality
63
C4
Indoor heat exchanger thermistor or related abnormality
65
C9
Room temperature thermistor or related abnormality
65
Outdoor
Unit
E1
Outdoor unit PCB abnormality
71
E5
OL activation (compressor overload)
72
E6
Compressor lock
74
E7
DC fan lock
75
E8
Input overcurrent detection
76
EA
Four way valve abnormality
77
F3
Discharge pipe temperature control
79
F6
High pressure control in cooling
80
H0
Compressor system sensor abnormality
82
H6
Position sensor abnormality
83
H9
Outdoor temperature thermistor or related abnormality
85
J3
Discharge pipe thermistor or related abnormality
85
J6
Outdoor heat exchanger thermistor or related abnormality
85
L3
Electrical box temperature rise
87
L4
Radiation fin temperature rise
88
L5
Output overcurrent detection
89
P4
Radiation fin thermistor or related abnormality
85
Summary of Contents for FTKN09NMVJU
Page 12: ...SiUS041501E 1 List of Functions Part 1 List of Functions 1 Functions 2...
Page 59: ...SiUS041501E Remote Controller 48 Part 5 Remote Controller 1 Cooling Only 49 2 Heat Pump 51...
Page 65: ...SiUS041501E Service Diagnosis 54 5 13 Power Module Check 100...
Page 132: ...Revision History Month Year Version Revised contents 03 2015 SiUS041501E First edition...