Troubleshooting by Remote Controller Si20-701_B
317
3.72
LC
Transmission Error
Between Inverter and Control
PCB
Remote Controller Display
LC
Applicable Models
CMSQ, RZQ-C7
Method of Error Detection
Check the communication state between inverter PCB
and control PCB by micro-computer.
Error Decision Conditions
When the correct communication is not conducted in
certain period.
Supposed Causes
Connection error between the inverter PCB and
outdoor control PCB
Defective outdoor control PCB (transmission section)
Defective inverter PCB
Defective noise filter
Defective fan inverter
Incorrect type of fan inverter
Defective compressor
Defective fan motor
Address conflict on inverter PCB
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