C1 Transmission Error (Between Indoor Unit Pcb And Fan Pcb) - Daikin VRVII Manual

Troubleshooting by Indication on the Remote Controller
C1
3.12
(between Indoor unit PCB and
Fan PCB)
Remote Controller Display
C1
Applicable Models
FXMQ20~140P
Method of Error Detection
Check the condition of transmission between indoor unit
PCB and fan PCB using micro-computer.
Error Decision Conditions
When normal transmission is not carried out for certain
duration.
Supposed Causes
Defective connection of the connector between indoor
unit PCB and fan PCB
Defective indoor unit PCB
Defective fan PCB
External factor, such as instantaneous blackout
Transmission Error
75