L5 Output Overcurrent Detection - Daikin R71FUV1 Service Manual

Si20-701_B
L5
3.63
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
Defective compressor (mechanical lock, poor
insulation)
Defective inverter PCB
Instantaneous fluctuation of power supply voltage
Defective compressor (if bearing is scratched)
Stop valve is not opened
284
Output Overcurrent
Troubleshooting by Remote Controller