Panasonic CS-Z25UD3EAW Service Manual page 121

18.4.27 F98 (Input Over Current Detection)
Malfunction Decision Conditions

During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is
detected by checking the input current value being detected by current transformer (CT) with the compressor
running.
Malfunction Caused

Excessive refrigerant.

Faulty outdoor unit PCB.
Troubleshooting
121