Daikin FLKS25BAVMB - 3.11 DC Fan Lock

Troubleshooting SiENBE05-722_A
68 Service Diagnosis
3. Troubleshooting
3.1 Error Codes and Description
H: Displayed only when system-down occurs.
Error Codes Description
Reference
Page
System
00
Normal —
U0H
Refrigerant shortage 99
U2
Low-voltage detection or over-voltage detection 101
U4
Signal transmission error (between indoor unit and outdoor unit) 74
UA
Unspecified voltage (between indoor unit and outdoor unit) 75
Indoor
Unit
A1
Indoor unit PCB abnormality 69
A5
Freeze-up protection control or heating peak-cut control 70
A6
Fan motor (AC motor) or related abnormality 72
C4
Indoor heat exchanger thermistor or related abnormality 73
C9
Room temperature thermistor or related abnormality 73
Outdoor
Unit
E1
Outdoor unit PCB abnormality 76
E5H
OL activation (compressor overload) 77
E6H
Compressor lock 78
E7
DC fan lock 79
E8
Input overcurrent detection 80
EA
Four way valve abnormality 81
F3
Discharge pipe temperature control 83
F6
High pressure control in cooling 84
H0
Compressor system sensor abnormality 85
H6
Position sensor abnormality 86
H8
DC voltage / current sensor abnormality 88
H9
Outdoor temperature thermistor or related abnormality 89
J3
Discharge pipe thermistor or related abnormality 89
J6
Outdoor heat exchanger thermistor or related abnormality 89
L3
Electrical box temperature rise 91
L4
Radiation fin temperature rise 94
L5
Output overcurrent detection 97
P4
Radiation fin thermistor or related abnormality 89
SiENBE05-722_A.pdf 77 24/02/2011 14:05:57