Malfunction Of Transmission Between Inverter And Control Pcb - Daikin Super Multi Plus D-Series Service Manual

Troubleshooting for Outdoor Unit
7.19 Malfunction of Transmission between Inverter and
Control PCB
LC
Remote
Controller
Display
Applicable
AII outdoor unit models
Models
Method of Check the communication state between inverter PCB and control PCB by micro-computer.
Malfunction
Detection
Malfunction
When the correct communication is not conducted in certain period.
Decision
Conditions
Supposed
Causes
312
Malfunction of connection between the inverter PCB and outdoor control PCB
Defect of outdoor control PCB (transmission section)
Defect of inverter PCB
Defect of noise filter
External factor (Noise etc.)
SiEBE18-526
Troubleshooting