SiUS281117
Troubleshooting by Remote Controller
122
Service Diagnosis
2.15 Transmission Error between Indoor Unit PCB and Fan
PCB
Remote
Controller
Display
C1
Applicable
Models
FBQ
Method of Error
Detection
Check the condition of transmission between indoor unit PCB and fan PCB using computer.
Error Decision
Conditions
When normal transmission is not conducted for certain duration.
Supposed
Causes
Connection error of the connector between indoor unit PCB and fan PCB.
Defective indoor unit PCB
Defective fan PCB
External factor, such as instantaneous blackout.