Code Indication On Remote Controller; Ra Indoor Unit; Sa Indoor Unit - Daikin 4MXS-R Series Service Manual

Code Indication on Remote Controller

4. Code Indication on Remote Controller

4.1

RA Indoor Unit

00
A1
A5
A6
C4
C7
C9
U4
UA
4.2

SA Indoor Unit

00
A1
A3
A6
A8
AF
C4
C5
C9
CE
CJ
U4
U5
U8
UA
Note: When there is a possibility of open phase power supply, also check power supply.
149
Error Codes
Normal condition
Indoor unit PCB abnormality
Freeze-up protection control, heating peak-cut control
Indoor fan motor or
related abnormality
Indoor heat exchanger thermistor or related abnormality
Front panel open/close fault (CTXG, FTXR series only)
Room temperature thermistor or related abnormality
Signal transmission error (between indoor unit and outdoor unit)
Mismatching of indoor unit and outdoor unit
Error Codes
Normal condition
Indoor unit PCB abnormality
Drain level control system abnormality
Indoor fan motor (DC motor) or related abnormality
(See the Note below.)
Indoor fan PCB abnormality
Humidifier or related abnormality
Indoor heat exchanger thermistor 1 or related abnormality
Indoor heat exchanger thermistor 2 or related abnormality
Room temperature thermistor or related abnormality
Presence sensor or floor sensor abnormality
Remote controller thermistor abnormality
Signal transmission error (between indoor unit and outdoor unit)
Signal transmission error (between indoor unit and remote
controller)
Signal transmission error (between MAIN remote controller and
SUB remote controller)
Mismatching of indoor unit and outdoor unit
Description
DC motor
(CTXG, FTXR, CTXS, FTXS, FVXS series)
AC motor (CDXS, FDXS series)
Description
SiUS121736EA
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Service Diagnosis