Troubleshooting; Indoor Units - Daikin CTXS09GVJU Service Manual

SiUS12-814

5. Troubleshooting

5.1

Indoor Units

- : Not used for troubleshooting
∗ : Varies depending on the cases.
Indication on the
remote controller
00
A1
A5
A6
C4
C9
U4
UA
Service Diagnosis
Description of the Fault
Indoor unit in normal condition (Conduct a diagnosis of the
outdoor unit.)
Indoor unit PCB abnormality
Freeze-up protection control or high pressure control (heat pump
model only)
Fan motor or related abnormality
Heat exchanger thermistor or related abnormality
Room temperature thermistor abnormality
Signal transmission error (between indoor and outdoor units)
Unspecified voltage (between indoor and outdoor units)
AC motor (Duct)
DC motor (Duct-free)

Troubleshooting

Details of fault
(Refer to the
indicated page.)
—
114
115
117
118
121
121
122
124
111