Daikin MKS-T Series, Service Manual

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SiSG121917E Code Indication on Remote Controller
Part 6 Service Diagnosis 114
4. Code Indication on Remote Controller
4.1 Indoor Unit
Wall mounted and LSP duct type
MSP duct type
In general, the error codes display automatically and system stops. Inspect and repair the error.

: “Inspection” is not displayed. The system operates, but be sure to inspect and repair the
error.
Error Codes Description Reference Page
00 Normal condition —
A1
Indoor unit PCB abnormality 116
A5
Freeze-up protection control 118
A6 Indoor fan motor or related
abnormality
DC motor (CTKS, CTKB
series)
119
AC motor (FDKS series) 121
C4 Indoor heat exchanger thermistor or related abnormality 123
C9 Room temperature thermistor or related abnormality 123
U4 Signal transmission error (between indoor unit and outdoor
unit)
124
UA Unspecified voltage (between indoor unit and outdoor unit) 126
Error Codes Description Reference Page
00 Normal condition —
A1 Indoor unit PCB abnormality 127
A3 Drain water level control system abnormality 128
A6 Fan motor or related abnormality DC motor (FDMR series) 129
A8 Fan PCB abnormality 131
AF

Drain system abnormality 132
C4 Indoor heat exchanger thermistor or related abnormality 133
C5 Indoor heat exchanger thermistor or related abnormality 133
C9 Room temperature thermistor or related abnormality 133
CJ

Remote controller thermistor abnormality 134
U5 Signal transmission error (between indoor unit and remote
controller)
135
U8
Signal transmission error (between MAIN remote controller
and SUB remote controller)
136
UA Field setting abnormality 137