Daikin R48NUY1 - C1 Transmission Error (between Indoor Unit PCB and Adaptor PCB)

Si20-701_B Troubleshooting by Remote Controller
118
3.16
C1
Transmission Error
(between Indoor Unit PCB and
Adaptor PCB)
Remote Controller Display
C1
Applicable Models
FCQG
Method of Error Detection
Check the condition of transmission between indoor unit
PCB and adaptor PCB using micro-computer.
Error Decision Conditions
When normal transmission is not conducted for certain
duration (15 seconds or more). After 60 seconds, error is
display on the remote controller.
Supposed Causes
 Connection defect of the connector indoor unit PCB
and adaptor PCB
 Defective indoor unit PCB
 Defective adaptor PCB
 External factor (Noise, etc.)