Troubleshooting by Remote Controller Si20-701_B
263
3.57
L1
Outdoor Inverter PCB
Abnormality
Remote Controller Display
L1
Applicable Models
RZQ-C7
Method of Error Detection
Detect the error by current value during waveform
output before compressor startup.
Detect the error by current sensor value during
synchronized operation at the time of startup.
Error Decision Conditions
In case of overcurrent during waveform output
When the current sensor errors during synchronized
operation
In case of IPM error
Supposed Causes
Defective outdoor inverter PCB
• Defective IPM
• Defective Current sensor
• Defective IGBT or drive circuit
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