Troubleshooting by Indication on the Remote Controller
280
Remote Controller Display
U2
Applicable Models
VRVII-S Series
Method of Error Detection
Detection of voltage of main circuit capacitor built in the
inverter and power supply voltage.
Error Decision Conditions
Supposed Causes
Power supply insufficient
Instantaneous failure
Defective inverter PCB
Defective outdoor control PCB
Defective main circuit wiring
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