Daikin FTXR-T Series Service Manual

Troubleshooting SiUS041829E
70 Part 6 Service Diagnosis
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 79
U4 Signal transmission error (between indoor unit and outdoor
unit)
81
UA Unspecified voltage (between indoor unit and outdoor unit) 83
Indoor
Unit
A1 Indoor unit PCB abnormality 71
A5 Freeze-up protection control/heating peak-cut control 73
A6 Fan motor (DC motor) or related abnormality 74
C4 Indoor heat exchanger thermistor or related abnormality 77
C7 Front panel open/close fault 78
C9 Room temperature thermistor or related abnormality 77
Outdoor
Unit
E1 Outdoor unit PCB abnormality 84
E5 OL activation (compressor overload) 85
E6 Compressor lock 88
E7 DC fan lock 90
E8 Input overcurrent detection 91
EA Four way valve abnormality 93
F3 Discharge pipe temperature control 95
F6 High pressure control in cooling 96
F8 System shutdown due to compressor internal temperature
abnormality
98
H0 Compressor system sensor abnormality 99
H6 Position sensor abnormality 100
H8 DC voltage/current sensor abnormality 103
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 107
L5 Output overcurrent detection 109
P4 Radiation fin thermistor or related abnormality 104

Daikin FTXR-T Series Specifications

General

Brand	Daikin
Model	FTXR-T Series
Category	Heat Pump
Language	English