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
îš„ Connection error between the inverter PCB and
outdoor control PCB
îš„ Defective outdoor control PCB (transmission section)
îš„ Defective inverter PCB
îš„ Defective noise filter
îš„ Defective fan inverter
îš„ Incorrect type of fan inverter
îš„ Defective compressor
îš„ Defective fan motor
îš„ Address conflict on inverter PCB
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