Si20-701_B Troubleshooting by Remote Controller
268
3.59
L4
Overcurrent of DC Output
(Instantaneous)
Remote Controller Display
L4
Applicable Models
RZ(Y)
Method of Error Detection
Fin temperature is detected by the thermistor of the
radiation fin.
Error Decision Conditions
When the temperature of the inverter radiation fin
increases abnormally due to defective heat dissipation.
Supposed Causes
Activation of fin thermal switch
Defective radiation fin thermistor
High outdoor air temperature
Insufficient cooling of inverter radiation fin
Blocked suction opening
Dirty radiation fin
Defective outdoor unit PCB
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