Si20-701_B Troubleshooting by Remote Controller
284
3.63
L5
Output Overcurrent
Detection
Remote Controller Display
L5
Applicable Models
RZQG
Method of Error Detection
The error is detected by converting the current flowing to
power transistor into voltage with CT1 (DC current
sensor).
Error Decision Conditions
When overcurrent has run to power transistor.
(Actuated even by instantaneous overcurrent)
Supposed Causes
îš„ Defective compressor (mechanical lock, poor
insulation)
îš„ Defective inverter PCB
îš„ Instantaneous fluctuation of power supply voltage
îš„ Defective compressor (if bearing is scratched)
îš„ Stop valve is not opened
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