Troubleshooting; Error Codes And Description - Daikin F-Series Service Manual

Troubleshooting

4. Troubleshooting

4.1

Error Codes and Description

Code Indication Description
System
00
U0H
U2
U4
UA
UH
Indoor
A1
Unit
A5
A6
C4
C7
C9
Outdoor
A5
Unit
E5H
E6H
E7
E8
F3
F6
H0
H6
H8
H9
J3
J6
J8
J9
L3
L4
L5
P4
H
108
Normal
Insufficient gas
Over-voltage detection / low-voltage detection
Outdoor unit PCB abnormality or signal transmission circuit abnormality
Unspecified voltage (between indoor and outdoor units)
Anti-icing function in other rooms
Indoor unit PCB abnormality
Freeze-up protection control or high pressure control
AC motor (Duct)
Fan motor or related
abnormality
DC motor (Wall)
Heat exchanger temperature thermistor abnormality
Front Panel Open / Close Fault
Room temperature thermistor abnormality
Anti-icing function
OL activation (compressor overload)
Compressor lock
DC fan lock
Input over current detection
Discharge pipe temperature control
High pressure control in cooling
Compressor sensor system abnormality
Position sensor abnormality
DC voltage / DC current sensor abnormality
Outdoor air thermistor or related abnormality
Discharge pipe temperature thermistor or related abnormality
Heat exchanger temperature thermistor or related abnormality
Liquid pipe temperature thermistor or related abnormality
Gas pipe temperature thermistor or related abnormality
Electrical box temperature rise
Radiation fin temperature rise
Output over current detection
Radiation fin thermistor or related abnormality
: Displayed only when system-down occurs.
SiEN12-710A
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Service Diagnosis