Troubleshooting; Indoor Unit - Daikin SUPER MULTI NX G Series Service Manual

Troubleshooting

5. Troubleshooting

5.1

Indoor Unit

00
A1
A5
A6
C4
C9
U4
UA
101
Error Codes
Normal condition
Indoor unit PCB abnormality
Freeze-up protection control or heating peak-cut control
Fan motor or related abnormality
Indoor heat exchanger thermistor or related abnormality
Room temperature thermistor or related abnormality
Signal transmission error (between indoor and outdoor units)
Unspecified voltage (between indoor and outdoor units)
Description of Fault
AC motor (Slim duct built-in)
DC motor (Duct-free)
SiUS12-928_A
Reference Page
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103
104
106
107
109
109
110
112
Service Diagnosis