Troubleshooting; Indoor Units - Daikin E-Series Service Manual

SiENBE12-620

5. Troubleshooting

5.1

Indoor Units

- : Not used for troubleshooting
∗ : Varies depending on the cases.
Indication on the
remote control
Indoor unit in normal condition (Conduct a diagnosis of the outdoor unit.)
00
Indoor unit PCB abnormality
A1
Freeze-up protection control or high pressure control (heat pump model only)
A5
Fan motor or related
A6
abnormality
Heat exchanger thermistor or related abnormality
C4
Shutter drive motor / shutter limit switch abnormality
C7
Room temperature thermistor abnormality
C9
Signal transmission error (between indoor and outdoor units)
U4
Unspecified voltage (between indoor and outdoor units)
UA
H ATXS20~25DAVMB have the AC motor.
Service Diagnosis
Description of the Fault
AC motor (Wall : 20~35 C series, Duct, Floor / Ceiling)
DC motor (Wall : 20~50 D, E series) H

Troubleshooting

Details of fault
(Refer to the
indicated page.)
—
213
214
216
217
219
220
219
221
222
211