Panasonic WH-SDC12F6E5 Service Manual page 130

17.5.21 Input Over Current Detection (F16)
Malfunction Decision Conditions:
During operation of cooling and heating, when outdoor current above 24.1 A (Heating) and 16.1 A (Cooling)
[UD12FE5)], 25.1 A (Heating) and 19.8 A (Cooling) [UD14FE5)] and 26.1 A (Heating) and 22.8 A (Cooling)
[UD16FE5)] is detected by the current transformer (CT) in the outdoor unit PCB.
Malfunction Caused:
1 Excessive refrigerant.
2 Faulty outdoor unit PCB (main).
Abnormality Judgment:
Continue 3 times in 20 minutes.
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