Troubleshooting; Error Codes And Description - Daikin FTXM-V Series Service Manual

SiUS042113E

4. Troubleshooting

4.1

Error Codes and Description

System
Indoor
Unit
Outdoor
Unit
: Displayed only when system-down occurs.
Part 6 Service Diagnosis
Error
Codes
Normal
00
U0 Refrigerant shortage
U2 Low-voltage detection or over-voltage detection
Signal transmission error (between indoor unit and outdoor
U4
unit)
UA Unspecified voltage (between indoor unit and outdoor unit)
Indoor unit PCB abnormality
A1
A5 Freeze-up protection control/heating peak-cut control
A6 Fan motor (DC motor) or related abnormality
Indoor heat exchanger thermistor or related abnormality
C4
Room temperature thermistor or related abnormality
C9
CC Humidity sensor abnormality
E1 Outdoor unit PCB abnormality
E3 Actuation of high pressure switch
OL activation (compressor overload)
E5
E6 Compressor lock
E7 DC fan lock
E8 Input overcurrent detection
Four way valve abnormality
EA
F3 Discharge pipe temperature control
F6 High pressure control in cooling
F8 System shutdown due to compressor internal temperature
abnormality
H0 Compressor system sensor abnormality
Position sensor abnormality
H6
DC voltage/current sensor abnormality
H8
H9 Outdoor temperature thermistor or related abnormality
J3 Discharge pipe thermistor or related abnormality
J6 Outdoor heat exchanger thermistor or related abnormality
Liquid pipe thermistor or related abnormality
J8
L3 Electrical box temperature rise
L4 Radiation fin temperature rise
Output overcurrent detection
L5
Radiation fin thermistor or related abnormality
P4
Description

Troubleshooting

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