Troubleshooting; Indoor Units - Daikin Super Multi NX C-Series Service Manual

SiE12-411

5. Troubleshooting

5.1

Indoor Units

- : Not used for troubleshooting
∗ : Varies depending on the cases.
Indication on
00
A1
A5
A6
C4
C7
C9
U4
UA
Service Diagnosis
the remote
controller
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
Shutter drive motor / shutter limit switch abnormality
Room temperature thermistor abnormality
Signal transmission error (between indoor and outdoor units)
Unspecified voltage (between indoor and outdoor units)
Description of The Fault
AC motor (Wall : 20~35, Duct, Floor / Ceiling)
DC motor (Wall : 50~71, Floor)

Troubleshooting

Details of fault
(Refer to the
indicated
page.)
—
169
170
172
173
175
176
175
177
178
167