Transmission Abnormality (Between Indoor Unit Pcb And Fan Pcb) - Daikin RXSQ24TAVJU Service Manual

Troubleshooting by Error Code
4.19 Transmission Abnormality (between Indoor Unit PCB and
Fan PCB)
C1
Error Code
Applicable
FXSQ-TA, FXMQ-PB
Models
Method of Error Transmission conditions between the indoor unit main PCB (A1P) and fan PCB (A2P) are checked
via microcomputer.
Detection
Error Decision
When normal transmission is not carried out for a certain duration.
Conditions
Supposed
Causes
183
Defective connection of the connector between indoor unit main PCB (A1P) and fan PCB (A2P)
Defective indoor unit main PCB (A1P)
Defective fan PCB (A2P)
External factor, such as instantaneous power failure
SiUS331708EA
Service Diagnosis