L1 Indoor Fan Protection; “L4” Power Supply Overcurrent Protection - Gree FGR25Pd/DNa-X Service Manual

3.1.10 "L4" Power supply overcurrent protection
Error display: IDU wired controller and IDU receive light board will display
Error judgment condition and method:
Check if the power supply current from IDU to wired controller is normal. If power supply current is
too big, it is judged that the current is abnormal.
Duct type split Air conditioner Inverter Series
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