Transmission Error Between Control And Inverter Pcb - Daikin RZQ Series FCQ20EVA Service Manual

Troubleshooting by Remote Controller

4.33 Transmission Error between Control and Inverter PCB

LC
Error Code
Applicable
RZQ45/48MYL
Models
Method of Error Check the communication state between inverter PCB and control PCB by micro-computer.
Detection
Error Decision
When the correct communication is not conducted in certain period
Conditions
 Defective connection between the inverter PCB and control PCB
Supposed
 Defective control PCB (transmission section)
Causes
 Defective inverter PCB
 Defective noise filter
 Defective fan inverter
 Incorrect type of inverter PCB
 Defective INV. compressor
 Defective fan motor
 External factor (noise etc.)
135
SiME281501E
Service Diagnosis