[Cause]
PowerWaveErrorCode No.84 occurred. Stop circuit #2 on the wire feed external I/O connector (usually a cooling water error) is open. This circuit causes an error to stop the welding machine.
[Countermeasure]
Check that the circuit "Stop 2 Input (Water Error)" is closed. If the problem persists, before performing any other operations (power-off or jogging) after this alarm occurs, use the abnormal-state recording function ("Abnormal State Record" in the auxiliary menu) to obtain an image backup and contact the service center. If that function cannot be used, record the conditions and operating steps up to the alarm, obtain an image backup, and contact the service center.