Daikin FTK24NMVJU - 4.9 Outdoor Unit PCB Abnormality

SiUS041501E Troubleshooting
Service Diagnosis 60
4. Troubleshooting
4.1 Error Codes and Description
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: 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