Daikin FTKS71FV1B - Troubleshooting; Indoor Units

Troubleshooting SiENBE12-713
234 Service Diagnosis
5. Troubleshooting
5.1 Indoor Units
- : Not used for troubleshooting
∗ : Varies depending on the cases.
Indication on the
remote control
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 236
A5
Freeze-up protection control or high pressure control (heat pump model only) 237
A6
Fan motor or related
abnormality
AC motor (Wall : 20~35 C series, Duct, Floor / Ceiling) 239
DC motor (Wall : 20~50 D, E series, Floor) 240
C4
Heat exchanger thermistor or related abnormality 242
C7
Front panel open / close fault (FTXG-E series, CTXG-E series) 243
C9
Room temperature thermistor abnormality 242
U4
Signal transmission error (between indoor and outdoor units) 244
UA
Unspecified voltage (between indoor and outdoor units) 246