Daikin Super Multi NX B series User Manual

Si12-308 Troubleshooting
Service Diagnosis 171
5. Troubleshooting
5.1 Indoor Units
- : Not used for troubleshooting
∗
: Varies depending on the cases.
Indication on
the remote
controller
Description of The Fault Details of fault
(Refer to the
indicated
page.)
00
Indoor unit in normal condition (Conduct a diagnosis of the outdoor
unit.)
—
A1
Indoor unit PCB abnormality 173
A5
Freeze-up protection control or high pressure control (heat pump
model only)
174
A6
Fan motor (DC motor) or related abnormality 176
C4
Heat exchanger thermistor or related abnormality 178
C7
Shutter drive motor / shutter limit switch abnormality 179
C9
Room temperature thermistor abnormality 178
U4
Signal transmission error (between indoor and outdoor units) 180
UA
Unspecified voltage (between indoor and outdoor units) 181

Daikin Super Multi NX B series Specifications

General

Brand	Daikin
Model	Super Multi NX B series
Category	Air Conditioner
Language	English